Do-it-yourself high-pressure washer - what to make it from and how to use it? Homemade Karcher - a convenient device for washing a car How to assemble a high-pressure car wash.

Since I didn’t see the clutch cylinder, I didn’t understand much in the diagram either. Therefore, the following questions arose:

– cylinder diameter and piston stroke?;

– the ratio of the lever arms?, one arm, if I understood correctly, is 35 mm, and the second?;

– maximum pressure that the compressor develops?

And also - Lefty, I didn’t understand about 160 atm and the sound volume. The volume should not depend on the initial pressure. It depends on the muzzle pressure, or in other words, on the air flow and on the design of the muffler. Those. or you have a bad shock mechanism or muffler. If you fill a cylinder at 160 atm, then to what pressure do you fire, what is the energy and number of shots.

HP pump. I'm not an expert in hydrodynamics.

Therefore, I ask for help so as not to step on the notorious rake.

Sincerely, Vladimir

Connection tube too long - large dead space

It is not advisable to make the outlet hole on the side (in this design), see the previous paragraph.

Yes, I would also seal the HP cylinder

The rest can be seen from the picture

I almost forgot: there must be a bypass valve at the outlet (near the pressure gauge)

High pressure tank compressor!? Who knows what?

A couple of months ago I saw one of these at the market and held it in my hands. The seller asked for about $40, didn’t buy it, was greedy to take a “pig in a poke,” but now it’s gone. The compressor is not large, weighing about 8-10 kg (I don’t remember exactly), two-cylinder, V-shaped arrangement of cylinders of different diameters. The drive is connected to the crankshaft splines, compactly.

Working pressure 150kg\cm2. Used to start a diesel engine. But, since the equipment is military, maybe we can try to squeeze out more? In general, additional information is needed:

1 Drive power;

2 Nominal crankshaft speed;

3 Possibility of upgrade?

Regards, Oleg

The compressor is not an AK150, but if so, it was also used in the T80 to pump cylinders up to 150 atm. 3-stage design, one cylinder with 1 stage, the second 2 stages. I'll try to find the exact specifications.

High pressure pump

Do-it-yourself high-pressure pump Since I didn’t see the clutch cylinder, I also didn’t understand much in the diagram. Therefore, the following questions arose: – cylinder diameter and piston stroke?; –

DIY high pressure washer

A high-pressure washer is a convenient device that allows you to easily wash your car, as well as other surfaces in your home. Thanks to the strong water pressure, such devices are able to clean even heavily soiled surfaces without the use of detergents.

Such devices are usually installed in car washes and cost a lot of money. The Karcher high pressure washer has deservedly gained popularity, but not everyone can buy it. Therefore, for use at home, you can make a car wash with your own hands. A homemade car wash is an excellent alternative to professional Karcher devices, which you can assemble yourself from available materials.

Industrial pressure washer

What is needed for making

To make a Karcher high pressure washer you need to find suitable materials. You can use scrap items or buy new ones at the store. So, to create a mini-wash you will need:

Water container. The container will contain water that is used for washing. The tank should have a capacity of about 5 liters, otherwise you will have to constantly refill the car wash near the water source. You should not choose a container that is too large, as washing will be very heavy. You can use an old plastic canister or bottle as a water reservoir. When choosing a container, you need to make sure that there are no seams at the bottom of the tank.
Gun for irrigation hose. This attribute can be purchased at any garden supply store. In addition, you can make a gun yourself.
Rubber hose with a length of 0.5 to 4 m.
Several hose connectors.
Sealant.
Using a simple set of equipment you can assemble a Karcher type sink. Also, a homemade car wash will require the use of a set of tools that can be found in any home: a sharp knife, a compressor or a car pump.

Making a high pressure washer from a canister

How the device works

A DIY high pressure washer will work on the same principle as conventional car washes. The water is supplied through a rubberized hose under high pressure. Air is pumped into a container of water by a car pump, which creates excess pressure in the tank. Water is pressurized to the outside and released when the trigger of the watering gun is pulled. Thanks to the strong water pressure, a car wash can clean any surface.

In this case, the pump is used exclusively to pump air into the tank. You can replace the constant use of a pump by installing a pump that will allow you to increase the pressure manually. Also an alternative to automobile pumps are plunger pumps.

Types of high pressure washers

Plunger pumps are modern devices that belong to metering-type hydraulic devices. The plunger pump independently mixes water and detergents in selected proportions and supplies the mixture under high pressure. The disadvantage of installing such a pump is the excess final weight of the car wash.

How to assemble a car wash with your own hands

Initially, you need to prepare a water tank. To do this, using a sharp knife, you need to cut a hole in the lid of the canister, which will be narrower in diameter than the nipple. After this, a nipple is threaded through the inside of the lid.

Advice : If the hole is larger than required, the gaps must be additionally sealed.

Through the nipple in the lid, the pump will pump air into the tank, and will also fill with water and detergents.

Next, you need to prepare a system for connecting the canister to the watering gun. To do this, you need to cut a hole in the bottom of the canister close in diameter to the coupling. The coupling is attached from the inside of the canister; you can wind it using a piece of wire. After threading the hose connector, sealant must be applied around the circumference. A fitting is also attached to the coupling.

Approximate diagram of a homemade high pressure washer

After the sealant has dried, you can begin preparing the sink for use. To do this, plug the fitting with your finger and pour water into the canister. You can also add any detergents (specialized car washes or household chemicals) to the tank. The nipple must be connected to a car pump and gradually inflate the canister with air. While performing this action, you need to ensure that the canister does not inflate too much. If it was decided to install a plunger pump or pump, then they are attached to the fitting using connecting hoses.

Having completed these steps, a rubber hose is connected to the fitting, at the end of which a watering gun should be attached.

Setting up the operation of a homemade high pressure washer

Advice : You can check the correct assembly by pressing the trigger of the gun. If, as a result, water begins to flow from the gun with strong pressure, then the device is assembled correctly. If this does not happen, then the canister is leaking air and you need to check all connections again and, if necessary, treat them with sealant.

Thus, it’s easy to assemble a mini-wash with your own hands; just follow the suggested instructions and buy a minimum set of equipment. As a result, within an hour you can produce a car wash, which in terms of the quality of work is no different from professional equipment in car dealerships.

How to assemble a car wash with your own hands using improvised materials

List of necessary equipment and tools for creating a car wash. Detailed instructions for constructing a sink.

Plunger water pump - distinctive features and use in everyday life

If you decide to start a car business in the form of a car wash or simply decide to keep your personal car perfectly clean without resorting to maintenance services, then when developing a design for washing with your own hands, you cannot do without the use of high-pressure pumps. The best option in this case is to use plunger models that provide the necessary pressure in the system and are characterized by high performance and price.

What is a plunger pump. Operating principle

The main element of the pump is the plunger - a long cylinder-shaped displacer with a small diameter. Unlike the piston type, the seal is located inside the outer cylinder, in which the plunger moves, coming into contact with its walls. During the reverse stroke of the plunger, liquid is sucked into the working chamber through the inlet valve; during forward movement, the inlet valve closes and the liquid is pushed out through the outlet.

Rice. 1. Design and principle of operation of a plunger pump

Differences between plunger pumps and piston pumps

Many people confuse plunger and piston type pumps due to the similarity of the operating principle and design (a displacer moves in the working cylinder). However, there are significant differences that make plunger pumps indispensable devices in many areas.

The plunger has a cylindrical shape, which makes it possible to process its surface with maximum precision and high purity, which cannot be said about the internal surface of the cylinders, the processing of which is technically and technologically difficult. This allows the plunger to be adjusted as accurately as possible to the surface geometry of the working cylinder, which has a positive effect on the output pressure indicators.
Unlike a piston with a short length of the working surface of the ejector, the plunger cylinder has an elongated shape, which makes it possible to place a large number of seals along its stroke and, accordingly, obtain a higher pressure at the outlet.
Seals in plunger types are located on the inside of the working cylinder, which is technologically difficult to process with high cleanliness and precision; the plunger in contact with the seals, on the contrary, has a very high processing class - this factor also makes it possible to obtain very high pressure in plunger pumps.

In modern high-quality plunger pumps, manufacturing precision is very high - the working cylinder moves inside the outer one with a gap between the walls of about 2-3 microns, and seals are placed on the outside of the plunger at its inlet and outlet of the cylinder.

Unlike piston types, the working surface of which is deformed in contact with liquid at high pressures, in plunger pumps the rigid and durable working cylinder does not change its shape at high pressures, which makes them indispensable when precise dosing of liquids is necessary.

Rice. 2 Internal structure of a plunger pump

Thanks to their design features, plunger pumps make it possible to obtain an outlet pressure 3 times higher than piston pumps with the same working chamber dimensions.

Application area

Plunger models are special-purpose devices that create very high pressure, so they are practically not used in everyday life. The main areas of their use are the industrial sphere, they are used in the following industries:

In the chemical industry for pumping substances with high viscosity and their precise dosage in the manufacture of chemical compounds that do not react with metal.
For supplying measured quantities of water and other high-pressure liquids.
In the oil and gas industry when drilling wells.
In the energy industry in steam generators.
In mechanical engineering in the manufacture of hydraulically driven equipment with operating pressures up to 3000 bar, in the automotive industry in injection systems of diesel engines.
Plunger water pumps are widely used in car wash service centers.

One non-traditional application for plunger pumps is water jetting and cutting materials. At a pressure of about 2000 bar. A jet of water can remove paintwork or rust without leaving any residue. The technology is widely used in cleaning reinforced concrete structures, the sides of ships and runways. A water jet with a pressure of 3500 bar allows you to obtain the highest degree of cleanliness of WJ-1 surfaces according to the international standard.

Rice. 3 Appearance of the plunger pump

Main characteristics of plunger pumps

Plunger pumps belong to the volumetric type, that is, when the volume of the working chamber increases, liquid enters the device, and when the volume decreases, it is pushed out.

Power consumption. The electricity consumed directly depends on the performance and pressure created; in this regard, plunger models have an advantage over other types due to their high efficiency of more than 90%.
Performance. It is determined by the volume of the pump’s working chamber and has a wide range from tenths of a liter per minute to ten thousand.
Operating pressure. The operating pressure of plunger types varies widely from hundreds to thousands of bar, the maximum value is about 3500 bar.
Models differ from each other in the number of plungers.

The operation of the pump is characterized by increased vibrations, which negatively affect its service life and performance characteristics. An engineering solution to this problem was the use in one unit of several plungers operating with a phase shift. The most common are three-plunger models with a stroke offset of the working cylinders of 120 degrees; the maximum number of plungers can reach 6. The implementation of this method is achieved by installing three eccentrics on the engine shaft that control the stroke of the plunger cylinders with a shift of 120 degrees.

Do-it-yourself plunger pump in a car wash device

In everyday life, you can use high-pressure plunger pumps for water when organizing car washes with your own hands.

Fig.4 Hydraulic diagram of a car wash

To do this you will need the following components:

High pressure plunger pump for water 100 - 200 bar. and productivity 15 l./min. Electric water pumps with an electric drive are quite difficult to find; usually an electric motor is connected to them.
Electric motor 2 - 3 kW. with a maximum rotation speed of about 2000 rpm.
Gearbox and V-belt drive for connecting the electric motor and pump. You can directly connect the pump and motor shafts using a soft coupling, which can level out the difference between the shafts and avoid damage in the event of jamming.
Hoses made of reinforced rubber or high-pressure plastic.
A gun with a nozzle and a handle that controls the water supply.
Water tank with recharge from the water main and a filter element at the outlet. The need for a separate tank for washing a car is due to the fact that car shampoos are added to it - this cannot be done when the pump is directly connected to the water main.
For ease of operation in the system, it is necessary to use a pump power adjustment paired with a discharge valve that releases excess water back into the tank.

Fig.5 Do-it-yourself car washing components

The main elements are mounted on a rigid frame, which is equipped with wheels and a handle for ease of movement.

Plunger pumps are quite expensive devices, widely used in industry to create high pressure of working fluids and their precise dosage. In everyday life, they can be used in systems designed for washing vehicles with your own hands.

DIY high pressure plunger pump for water washer

What is a plunger pump. The principle of operation and differences between plunger pumps and piston pumps. Application area. Main characteristics of plunger pumps.

How to make a high pressure washer with your own hands

What is a pressure washer?

Today, you no longer need energy and time to fight dried-on dirt and dust that has clogged up in secluded corners, because new models appear on the market every year high pressure washers. These devices are used for washing windows, cars, walls and doors of houses, barbecues and other objects that are difficult to clean with a rag or brush. Strong water pressure copes with this task much more effectively and saves money spent on washing the car at a service center; water consumption is also minimal. Therefore, having such a sink in your arsenal is useful for everyone.

The leading companies in the production of high-pressure washers are the German companies Bosch, Karcher (hence the second name for the wash - Karcher) and Elitech. The average price of these sinks on the market starts at 10,000 rubles. Inexpensive car washes cannot be used for more than one car per day, and the most expensive models are limited to seven cars.

Washing device

Hose attachments are available to facilitate the cleaning process - brushes of varying hardness, soft rollers, standard sprayers. If you purchase a couple of attachments, you can expand the functions of your sink by using it as an automatic mop or steam cleaner (you need to equip the sink with a heater).

Internal pressure

If the contamination cannot be cleaned with a jet of water, purchase a special nozzle for the hose, a turbo cutter. It will help wash tires, wheels, and remove dirt accumulated in the cracks. You can use the mini-wash both outside and inside the car. If you are using a turbo cutter, you will need a pressure of 160 bar.

Electric pump

Before purchasing and using a pump when designing a sink, read how to choose the right device.

The material of the pump determines its wear resistance. A bad option is a plastic pump; it will soon fail if you use it for more than 20 minutes at a time. Expensive but reliable pumps are made of brass because it does not corrode. These pumps are rarely found in commercial car washes.

How to use the mini-wash

To wash worked properly, follow these recommendations.

Be sure to check the operation of the washer before you start using it, this will save your time and health.
Clean and change the filter installed in the car wash after each use.
If the washer uses electricity to operate and the source is unstable, provide it with a battery.
Do not let children use the sink.
If repairs are necessary, do not hesitate to carry them out. Replace damaged sink components.
Update the device gaskets.
Protect your sink from temperature changes.

How to make a Karcher yourself

Although car washes have achieved widespread use, they come at a high price. So, if you want to do the sink yourself, you will be needed:

canister;
irrigation hose with gun;
pump;
union;
canister lid;
tubeless wheel fungus;
rubber gasket;
coupling.

These are the components of the future car wash. Materials that will come in handy during the manufacturing process:

First stage. Selection of components.

The irrigation hose must be strong and flexible and should not be twisted or broken. Hoses with nylon braid are considered durable. A hose consisting of several layers is more reliable. Don't skimp on this component. The only requirement for the gun is that it must hold tightly to the hose.

Choose the fitting and coupling at your discretion, the main thing is that they are in close contact with each other. It is preferable to purchase both the fitting and the coupling from the same material (plastic or metal).

Second phase. Preparing the canister.

Drill a hole in the canister that is the right size for your coupling. Insert a coupling with a screwed-in fitting into this hole. Secure the structure with sealant so that the coupling does not pop out during operation, and the required pressure is maintained in the canister.

Third stage. Cover assembly.

The lid needs to be strong, solid and suitable for the canister. To prevent air from escaping from the canister, attach a rubber gasket to the bottom of the lid. Then make a hole in it and insert the tubeless tire fungus into it.

Fourth stage. Assembly of the structure. Additional functions.

If you will use the sink during the cold season, equip your sink with a special burner for heating the water. For these purposes, you will need a larger canister; it will lose mobility, but with the help of hot water the car is cleaned of heavily dried dirt.

Decide in advance what you are using the sink for. If you want to clean the windows of a house or the wheels of a car, then a compact, mobile washer on wheels and with a long hose will suit you. When using a sink on a production scale, you will not need its ability to move, so it is better to design a stationary sink. It connects directly to the water supply. If the need arises, set up automatic water supply to save money.

While you can save on water consumption, you cannot save on purchasing sink components. To prevent the item from becoming dirty after washing, purchase special filters. You don't need an expensive filter to purify the water to drinkable condition. A filter is needed to purify the water, at least from debris that will disable the sink.

You can even make money by designing a pressure washer if you open a car wash. The main thing is that the sink you make works. Using a car wash, you can clean bicycles, mopeds, cars, trucks and their components.

How to make a Karcher powered by a cigarette lighter

This sink design does not require any costs. Below are instructions for creating a more complex model:

windshield washer motor;
irrigation hose with gun;
cigarette lighter (motor power supply), cigarette lighter plug;
two hoses 3 meters long, one hose must fit freely into the other;
corrugated hose with a diameter of 25-30 millimeters;
switch;
M8 bolt, washer and nut;
two plastic canisters (volume 10 liters);
6 self-tapping screws;
two-core electrical wire 5-7 meters long;
plastic sleeve;
power cable;
brush for washing a car.

First stage. Creating a hose.

We make a small hole in the bottom of one of the canisters. A thinner hose (up to 6 millimeters) and a two-core wire are placed inside a thick hose (diameter 10 millimeters or more). Then the hoses we have fastened are inserted into the opening of the canister. A plastic sleeve is inserted into the free end of the hose. Next, a thin hose is attached to the washer motor, and the wires are also connected to the motor.

Second phase. Creating a canister with a double bottom.

The wires are also secured using self-tapping screws and sealant. Then they connect, again using self-tapping screws, the body of the structure: the second bottom and the hinged lid.

Third stage. Completion.

Using the power cord, the wires are connected to the cigarette lighter. A hole is made in the brush for the button, the switch is secured. The brush itself is mounted on the edge of the hose with a plastic sleeve. Use the attached diagrams in your work to better understand the text.

Do-it-yourself high-pressure washer: photo, device, pressure

How to make a high pressure washer with your own hands What is a high pressure washer? Today, you no longer need energy and time to fight dried dirt and dust that has clogged up in secluded corners, because

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How to make your own car wash?

Washing a car with your own hands is a tedious and unpleasant task, and it takes a lot of time. This is especially felt in spring and autumn, when there is mud and slush all around. In order to wash the car yourself and well, you need to change clothes so as not to get dirty yourself. Of course, you can use the services of a stationary paid car wash. But, firstly, there is not always time for this, and secondly, it costs money. You can buy a mini-wash, but the prices for this product are quite high.

The easiest way to do your own washing is to use an air compressor.

Do-it-yourself mini-washing is simple and accessible to everyone, and there is more than one option for creating this mechanism. By doing it yourself and spending a minimum amount of money on purchasing parts, you will only get pleasure from washing your car.

What materials will be needed?

Scheme of a homemade mini-wash.

This mini-wash will work on the basis of a compressor; all the work can be done independently, that is, with your own hands.

You will need very few parts and materials, so creating it will not cost you much. It is very economical to use parts from old, unused equipment, for example, from a washing machine.

tire compressor;
a suitable capacity of at least 10 liters, you must take into account not only the ease of washing the machine, but also the subsequent ease of storage;
long hose (you can use an old one from a washing machine);
short hose (for example, from a sink faucet);
a fitting with a nipple (it is also not necessary to buy a new one, you can use the old one from the camera);
a brush (perhaps the only thing you will have to buy in the store);
faucet (one that is used to supply water to a washing machine, or any other that you find more convenient to use) is suitable;
rubber gaskets (for reliable sealing, you can also use FUM tape);
sealant.

First, connect the compressor to the fitting using a hose. A tap is attached to the brush, with which you will regulate the optimal amount of liquid throughput.

Accordingly, the tap is also connected to the hose. After connecting all the parts, you can start operating the device.

This is not the only option for creating a mini-wash. you can do it yourself and an automated version, which, of course, is more convenient. Such a home washer can operate from the car’s on-board network, for example, from a cigarette lighter or simply from an electrical network, but only through a rectifier with a 12-volt output.

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Materials for making an automatic mini-wash

The high pressure pump from a car washer is perfect as a compressor for a car wash.

You may already have all the necessary materials. If not, then you can purchase them at the nearest car market or at a specialized auto parts store. An automated car wash is simple enough that any car enthusiast can decide to make it with his own hands.

Such a car wash can be useful to you not only on ordinary days, but also when traveling, when you won’t find paid stationary car washes on the road. Start manufacturing by selecting or purchasing parts, only after purchasing which you can proceed directly to the assembly process.

Washer motor. Suitable for any car, for example, a “9” or a “Volga”, it doesn’t matter. It doesn’t have to be new, it can be used, but only working.
Brush on a hose for washing a car.
Cigarette lighter plug.
Hose, 2 pieces, with diameters 6 and 10 mm, each length at least 3 meters.
Switch.
Electrical wire with a length of 5 to 6 m, it is recommended to use a two-core one.
Brass bolt M8, with corresponding washer and nut.
Galvanized self-tapping screws, 6 pieces, d4×12 mm.
Polyethylene canisters, 2 pieces, or other suitable containers, with a volume of at least 10 liters.
Sealant.
A piece of corrugated hose.

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Installation of a home automated mini-wash

Hydraulic diagram of a car wash.

You also don’t need any special knowledge to create such a necessary thing as an automated mini-wash. Only the necessary tools, the availability of the necessary parts and the desire to make the process of washing your car with your own hands more enjoyable.

First, you need to prepare the canisters; one of them will have to be cut in order to create a “second bottom” where the shuttle for winding the wire and power and the rotating lid will be located.
For cutting, you can use a knife or scissors, depending on the thickness of the canister walls.
Regular drinking water cans are ideal for this.
In the bottom of the whole canister you need to make a hole corresponding to the diameter of the large hose, that is, 10 mm, exactly under the inlet of the canister. On the opposite side you need to make a hole corresponding to the washer.
The washer is attached using a brass M8 bolt, respectively, with a nut and washer, to the outer surface of the bottom of the whole canister approximately in the middle. The motor is secured with a clamp, which can be easily made from a strip of plastic.
To install the hoses, plastic bushings are used. These can even be cases from ordinary felt-tip pens. After fastening, you need to connect the receiving tube from the motor to the bottom of the canister into the hole made in advance, from where water will flow to the motor.
The wires and thinner hose are inserted into the larger diameter hose. You need to insert it into the inlet of the canister and through the hole made in its bottom. For reliability, the hose is secured in the hole with a sleeve.
You need to install a switch or button on the brush; make a choice from these parts yourself. Choose what you find more convenient, because you will perform the entire manufacturing process with your own hands. A button or switch is glued inside the handle.

To decorate it, use a piece of corrugated hose; a diameter of 25 mm is suitable for this. It must be put on the brush handle in advance, that is, before assembly is carried out. Naturally, wires are connected to the switch.

The lower ends of the wire must be connected to the washer motor and to the power cord, which, in turn, must be connected to the motor. When choosing a power cord, do not forget that it must be 12-volt. The cigarette lighter plug is connected to the cord.

After the wires have been soldered, the lower part (cut) of the canister, that is, its “second bottom,” is attached to the main canister with self-tapping screws. Do not forget about the tightness of the connections; you must use a sealant, even if it seems to you that everything is fine. The rotary cover must be attached in the same way. If all the nuances and smallest details are observed, assembly will not take you much time.

Situations often occur when a car becomes very dirty as a result of driving through a polluted area, but there are no facilities nearby to wash it well. For example, you went to the forest to pick mushrooms or berries, or to the lake. Running into a pond with a bucket to douse the car while rubbing the dirt with an old rag is not an option. For such purposes, you can make a small mini-sink using the simplest means at hand. It will be very compact and can easily fit into the trunk of any car without eating up extra space.

To understand how to make such a device, watch this video:

Necessary materials for making a mini-sink:
- foot pump;
- capacity;
- union;
- quick release valve;
- lid;
- fungus from a tubeless wheel;
- hose;
- watering head;
- rubber gasket;
- glue;
- transition coupling;
- sealant.

To start work, take a container prepared in advance. This can be an ordinary plastic canister with a volume of at least 10 liters. Ideally, you need to use a large container made of thick plastic or metal.

A fungus from a tubeless wheel is built into the lid of the container and sealed with a rubber gasket on glue. There is no need to install a gasket if the hole for the fungus is made very precisely, which allows it to hold tightly and tightly.

A hole is made at the bottom of the container into which a fitting is attached using an adapter coupling and silicone sealant.

The watering head is equipped with a quick-release valve that allows you to connect a hose. This valve also connects the hose to the container.

It is best to use a watering head equipped with five operating modes: 3 rain and 2 simple jets. This will make its use more functional.

Principle of operation.
Using a foot pump, we pump air into the container so that the pressure is no more than 0.1-0.2 atmospheres, this will be more than enough. This creates excess pressure inside the plastic canister, causing air to press on the water in the container. Now it will be enough to open the valve of the watering head so that water flows out. Just be careful not to apply too much pressure to prevent your container from bursting.

If there are drainage systems on public roads, they are somewhere deep in the project. If they worked as expected, then there would be fewer or no problems with dirt. As, for example, in agricultural Holland. And the black soil is oily and the clay is sticky, but the cars are clean. Although it may not be a matter of drainage, the problem remains and it needs to be solved somehow. A huge amount of dirt and silicon dissolved in clay stick to cars every day, and in order to get dirty, it is not at all necessary to take a tour of the collective farms of the Oryol region. It’s enough to drive around in a large city for a few hours after the rain, and you won’t be able to go to the garage without going to the car wash. The service is not as cheap as we would like, but it needs to be washed. Therefore, when calculating how much it costs to use the services of a car wash, a crazy thought comes to mind about buying a mini-high-pressure washer, or even better, that is, cheaper, making a mini-wash with your own hands.

What should a car wash be like?

There is no need to talk about the advantages of mini-washing over bucket washing. A high-pressure jet will perfectly remove dirt from fender liners, bumpers, and rims, and a good foaming nozzle will complete the job. The body will be clean and tidy until the next rain or trip out of town. You can assemble a sink with your own hands, but you first need to know what indicators the design must have in order for it to be of any use. You need to come to terms with the fact that it will not be possible to build a Karcher 7-series, but you need to strive for this if you really want to save 7-8 thousand on a functional, reliable unit. When planning the design of a homemade sink, you need to focus on the best branded models, so we will follow them.

Do-it-yourself mini-wash. Looking for simple ways

The main figure in the washing machine remains the compressor, which turns a garden hose with a nozzle into a high-pressure washer. The engine for the drive is the tenth thing. The main and most difficult task is to decide on the compressor and its type. You can take the simple path, as many do. Assemble the device according to the principle of a portable foam generator. For some reason, the famous Monsoon can serve as an example. The device is schematically a cylinder or any container, and in the case of Monsoon, a plastic cylinder into which air is pumped using any portable compressor. A foaming agent is not a high-pressure apparatus by definition, so it makes no sense to want an output of 180 bar from it. Firstly, you still need to look for a household compressor that can pump up high pressure, and secondly, you need to find a cylinder that won’t break into pieces.

Video on how to choose a high pressure washer

Now about the enterprise price. Monsoon costs about 2.5 thousand rubles, and this is only a foam generator. It includes a cylinder, a hose, valves and adapters, seals, and sprayers. The foam generator operates at a pressure of up to 5 atm maximum and cannot be called a high-pressure washer. It can create foam quite well (which then needs to be washed off somehow), and it can be used to conveniently wash the engine compartment and wheels of a simple configuration. You can increase your blood pressure, but to reasonable limits. The manufacturer of Monsoon carefully hints that it is not worth raising the pressure above 4 atm, and this is indicated by the limit valve. The configuration is normal, as for a foam generator, it works from the Aggressor pump, so you can’t jump higher than the ceiling. From this we can draw a conclusion.

You can assemble a foam generator with your own hands, and this does not require mind-boggling expenses:

you need a plastic canister, the bigger the better;
flexible hoses, low pressure can be used;
compressor for inflating wheels, Berkut R20, Aggressor;
fittings, gaskets, sealants and clamps in place.

To give the device mobility, you can use a car compressor that runs from the cigarette lighter. For example, K50 at 12 volts can provide a legal 2 atmospheres. You can inflate them using the nipple fitting from a tubeless tire. Thus, you can assemble a foam generator with your own hands cheaply and cheerfully. But this unit is still far from being a high-pressure washer.

Important characteristics of a mini high pressure washer

The performance of the device is not the most important indicator, but if a homemade mini-wash takes water not from the water supply, but from its own autonomous tank, then it is advisable to save water. On average, when washing a car using the bucket-rag method, 40-60 liters of water are used. Less will not work. From here you need to calculate the approximate volume of the autonomous cylinder. Branded sinks consume from 5 to 15 liters per minute. That is, if the container capacity of a homemade sink is 25 liters, then water must be added every two minutes.

Pressure is a sore point. In mid-price range sinks, Karcher or Shtil, high-pressure axial pumps are installed. In principle, it is possible to buy such a unit. Only it will cost 40% of the cost of the entire mini-wash. Therefore, the profitability of reinventing the wheel is rather precarious. You can not accelerate to such pressure, but take the path of least resistance. Take a pump from the fuel system of any car, just keep in mind that it will not work for a long time. Gasoline is its only lubricant, and water is a lubricant of dubious quality, so it will die after the first major wash, repairing it is impossible. In this case, we will lower the pressure even more and install a 12-volt pump from the glass washer of any car.

Even with such a weak pump, we must not forget about filters. Each model of a branded mini car wash is equipped with an inlet filter. Firstly, because a fairly large fraction can float in the water and it will damage the pump. And if it doesn’t cause any damage, it will clog the foam nozzle or spray nozzle. Secondly, it can get on the paintwork and leave a new scratch. A filter is necessary, but it’s better to abandon replaceable cartridges in favor of a filter that can be washed.

Nozzles and additional sprayers offered by well-known brands are only relevant if serious pressure can be achieved. If the pressure of a homemade mini-wash is at the level of 1-2 atm, then only one spray nozzle will be enough to prepare the surface. There is no point in using foam nozzles, since such a device itself is essentially a foam generator.

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Washing device

The main component of the sink (or Karcher) is the engine, which creates the necessary water pressure. A pump or motor will do (you don’t have to buy a new one, take a working one from an old car), the motor is built into the body of the sink and must be connected to a power source. For the body of the sink (body), choose a durable material, thick plastic or metal. Even if you purchase a wear-resistant case, it is better not to use the sink for more than three hours at a time. This will put the washer out of action soon.
Hose attachments are available to facilitate the cleaning process - brushes of varying hardness, soft rollers, standard sprayers. If you purchase a couple of attachments, you can expand the functions of your sink by using it as an automatic mop or steam cleaner (you need to equip the sink with a heater).

Internal pressure

The higher the pressure inside the housing, the stronger the stream of water gushing from the hose, which means the dirt comes off easier. Set the pressure carefully, because water can simply break a fragile car part or glass and leave dents. Manufacturers set the pressure at 150-170 bar, but 100 bar is enough to clean the car.
If the contamination cannot be cleaned with a jet of water, purchase a special nozzle for the hose, a turbo cutter. It will help wash tires, wheels, and remove dirt accumulated in the cracks. You can use the mini-wash both outside and inside the car. If you are using a turbo cutter, you will need a pressure of 160 bar.

Electric pump

Before purchasing and using a pump when designing a sink, read how to choose the right device.
The material of the pump determines its wear resistance. A bad option is a plastic pump; it will soon fail if you use it for more than 20 minutes at a time. Expensive but reliable pumps are made of brass because it does not corrode. These pumps are rarely found in commercial car washes.

How to use the mini-wash

To wash worked properly, follow these recommendations.

Be sure to check the operation of the washer before you start using it, this will save your time and health.
Clean and change the filter installed in the car wash after each use.
If the washer uses electricity to operate and the source is unstable, provide it with a battery.
Do not let children use the sink.
If repairs are necessary, do not hesitate to carry them out. Replace damaged sink components.
Update the device gaskets.
Protect your sink from temperature changes.

How to make a Karcher yourself

Although car washes have achieved widespread use, they come at a high price. So, if you want to do the sink yourself, you will be needed:

canister;
irrigation hose with gun;
pump;
union;
canister lid;
tubeless wheel fungus;
rubber gasket;
coupling.

These are the components of the future car wash. Materials that will come in handy during the manufacturing process:

drill;
sealant.

First stage. Selection of components.

The required volume of the canister depends on you and the purposes for which you will use the car wash: a five-liter canister is enough for a passenger car. Drivers carry a car wash in their luggage, so choose a body based on both volume and dimensions.
The irrigation hose must be strong and flexible and should not be twisted or broken. Hoses with nylon braid are considered durable. A hose consisting of several layers is more reliable. Don't skimp on this component. The only requirement for the gun is that it must hold tightly to the hose.

The pump can be foot-operated or automatic. We won't need the high power of this pump, so don't buy an expensive one. Using an automatic pump is much more convenient than a foot pump, since you do not have to constantly drag the pump from place to place and do unnecessary work with your foot. However, the cost of the pump plays a decisive role; an automatic one is three times more expensive.
Choose the fitting and coupling at your discretion, the main thing is that they are in close contact with each other. It is preferable to purchase both the fitting and the coupling from the same material (plastic or metal).

Second phase. Preparing the canister.

Third stage. Cover assembly.

Fourth stage. Assembly of the structure. Additional functions.

Screw the lid on the canister tightly, connect the cord from the pump to the fungus, attach the free edge of the hose to the hole made in the canister using a fitting. The homemade sink is ready. The principle of operation of such a washer is simple: using a pump, air is pumped into a canister of water (the canister is not filled to the brim with water). Create pressure up to 0.3 bar or higher if your canister can handle it. Under the influence of pressure, water streams out of the gun when you press the handle.
If you will use the sink during the cold season, equip your sink with a special burner for heating the water. For these purposes, you will need a larger canister; it will lose mobility, but with the help of hot water the car is cleaned of heavily dried dirt.

Provide a power source for the washer. If the washer runs on fuel (gasoline or diesel fuel), then there will be no problems with moving it. When planning an electric car wash, make sure you have a working and accessible source of electricity. In this case, you are unlikely to be able to freely transport the sink from place to place, but you will not have to spend money on expensive fuel.
Decide in advance what you are using the sink for. If you want to clean the windows of a house or the wheels of a car, then a compact, mobile washer on wheels and with a long hose will suit you. When using a sink on a production scale, you will not need its ability to move, so it is better to design a stationary sink. It connects directly to the water supply. If the need arises, set up automatic water supply to save money.
While you can save on water consumption, you cannot save on purchasing sink components. To prevent the item from becoming dirty after washing, purchase special filters. You don't need an expensive filter to purify the water to drinkable condition. A filter is needed to purify the water, at least from debris that will disable the sink.

How to make a Karcher powered by a cigarette lighter

This sink design does not require any costs. Below are instructions for creating a more complex model:
Us you will need:

windshield washer motor;
irrigation hose with gun;
cigarette lighter (motor power supply), cigarette lighter plug;
two hoses 3 meters long, one hose must fit freely into the other;
corrugated hose with a diameter of 25-30 millimeters;
switch;
M8 bolt, washer and nut;
two plastic canisters (volume 10 liters);
6 self-tapping screws;
two-core electrical wire 5-7 meters long;
plastic sleeve;
power cable;
brush for washing a car.

Additional materials:

sealant;
drill.

First stage. Creating a hose.

Second phase. Creating a canister with a double bottom.

The second canister is cut approximately in the middle in order to subsequently make a second bottom with a shuttle out of it. The motor is fixed to the second bottom of the canister; for these purposes, a homemade clamp is used, which can be made from the remains of a cut canister. For this we need an M8 bolt and a little sealant.
The wires are also secured using self-tapping screws and sealant. Then they connect, again using self-tapping screws, the body of the structure: the second bottom and the hinged lid.