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How to make a pressure washer

Over time, high-pressure washers, mainly used for cleaning cars, have become more widespread in domestic markets. Using a similar device, you can wash both the body part and the bottom and engine compartment. The undoubted advantage of this device is that a precisely directed jet is used to remove dirt from the surface of the car without the use of a powerful water pump. A very profitable idea is a do-it-yourself pressure washer, which allows you to significantly save money spent on periodic washing of the car. If we take into account domestic weather conditions, when at any time of the year there is dirt on the roads in any of the states of aggregation, then such a wash will pay off very quickly.

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

Basic principles for creating a sink

The main functional element of the sink is a pump that meets a number of requirements. So, it should show high functional performance per unit of time and work in normal mode at a pressure of about 100-200 bar. Many electrically driven plunger pumps have these characteristics. When choosing a pump for your future sink, special attention should be paid to the material that has become the basis for its working part. The best option is if ceramic or durable metal is used for the pump pistons. The best option for the manufacture of the cylinder head is brass. Durable components are the key to a long service life.

The most profitable would be to purchase a pump with a working capacity of about fifteen liters per minute and a pressure of up to two hundred bar.

It turns out that such a pump in normal operation will operate at 80-90% of its maximum power.

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The choice of parts for washing

When choosing an electric motor, you should pay attention to models that have a power supply of about 220 or 308 volts. In the event that the pressure washer will be used at home, it is advisable to use a single-phase 220 volt connection, as it will not entail additional costs and meets all safety requirements. To ensure optimal starting of certain motors, it is desirable to use additional capacitor banks. So, the performance of the pump directly depends on the number of engine revolutions: the higher their frequency, the greater the performance.

But it should be borne in mind that working in this mode can negatively affect its resources. Do not give preference to too high-speed models. The maximum allowable rotational speed in this case is up to two thousand revolutions with a power of two or three kilowatts.

A high-pressure washer of a certain design makes it possible to provide the necessary pump performance when using a single-stage gearbox operating with a V-belt drive. Their gear ratio depends on the parameters of the pulleys (slave and driver). An equally important role in the activity of gearboxes is played by the characteristics of the distance between the axes of rotation.

A coupling is usually used to ensure the fixation of the pump and motor. The most suitable option is a soft coupling that can compensate for the minimum axial misalignment of the shafts and act as a safety element in case the gearbox or pump is jammed.

A very important structural element of any sink is a water storage tank. In order to ensure the maximum performance of the pump, it is necessary to use a certain volume of liquid. To do this, it is possible to use a special liquid tank capable of replenishing from the water supply network. Be sure to install a filter element at the outlet from the tank (it can be an ordinary small network), designed to clean the liquid from dirt particles and prevent blockages from entering the pump. To enhance the washing effect, a special or conventional detergent can be added to the liquid.

Do-it-yourself car wash should have a pump performance regulator in its design. Usually this device is connected to an automatic unloader valve capable of redirecting the liquid back to the tank in an emergency so that no harmful load is placed on the pump.

In order to fix all the structural elements of the sink, a special frame is used. For its construction, you can use hollow curved pipes. To ensure the convenience of its use, you can fix a pair of small support wheels in its lower part and make an emphasis to give stability to the structure during use. One of the ends of the frame can be equipped with a special handle designed to transport the sink around the yard or garage.

The main structural element of a homemade sink is a water tank. In order to ensure maximum pump performance, a certain volume of liquid must be used.

One of the most important elements that make up a do-it-yourself sink is high pressure hoses. A standard not too thick reinforced rubber or plastic hose can act as a sleeve. It should be borne in mind that all structural connections of hoses must be made in compliance with the conditions of tightness, on the one hand, and not be afraid of corrosion and easy to disassemble, on the other. To equip the fasteners, you can use fittings or threaded bushings made of hard aluminum alloys or brass. For this purpose, it is possible to install bayonets.

When building a sink with your own hands, you must also pick up a gun equipped with a nozzle. Thanks to its shape, an imitation of the shape of the working jet is obtained. Actually, in appearance it resembles a pistol used at gas stations. In order to start the water supply from the nozzle, press the handle. This is a definite plus, as it allows you to save a large amount of water: the liquid is supplied only when it is needed, when you press the pistol grip. It is rather problematic to make a shut-off valve with your own hands; the simplest and most reliable option would be to purchase a ready-made tip.

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

When performing high pressure, care must be taken to create grounding. For this purpose, a three-core flexible wire equipped with double insulation is often used, and a plug supplemented with a ground terminal. It should be borne in mind that the power outlet also needs reliable grounding using a circuit.

Periodically, it is necessary to inspect all connections and fasteners and tighten them if necessary. Regularly clean the filter element of the tank from accumulating debris.

It is undesirable to use a jet of water with high pressure too often - this causes an excessive load on the charge pump and damages the car's paintwork. It is recommended to apply pressure that can contactlessly remove the main layer of dirt on the surface to be treated, and manually remove the remaining dirt with a brush.

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The principle of operation of a pressure washer

Thanks to the devices operating at high pressure in the range of 120-150 bar, dirt can be removed from almost any surface. It is worth being prepared for the fact that a small layer of plaque will still remain after such processing.

Any sink must have a device that regulates the nozzle. By adjusting the position of the nozzle, you can change the pressure or shape of the jet. The nozzle can be equipped with foam generators and additional mud cutters.

If you wish, you can design a sink with your own hands that can be fed not only directly from the water supply, but also from a special reservoir - for example, barrels of water. To improve the pressure in the sink, you can put the barrel on a slight elevation.

In case of a power outage or use of a sink away from outlets, you can equip the device not only with a water tank, but also with a powerful battery.

The undoubted advantage of sinks of this kind is the great water savings, in contrast to manual washing.

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Washing device

Inside the high-pressure washer, there should be an engine that provokes the rotation and opening of the remaining parts - the valve, washer or sprayer. The result of its work is the untwisting of the washer and the movement of water along the atomizer according to the forward-return trajectory, as a result of which water enters the atomizer valve. The result of the action of many mechanisms is the formation of a powerful pressure and water supply.

It is advisable to choose a housing for washing from impact-resistant plastic. The same requirements apply to the hose connected to the sprayer, as it will have to interact with a strong water pressure.

No matter how durable the sink materials are, it is highly recommended not to use it for more than two consecutive hours. Too long a cycle of operation can lead to rapid wear of the component parts and shorten the life of the device several times.

If you equip the sink with additional nozzles, it will be able to perform the functions of household appliances. When using additional nozzles, the sink can be used both for washing a car and for cleaning roofs, facades and floors.

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The main parts of a pressure washer

A do-it-yourself sink consists of the following elements:

• durable wear-resistant housing;
• engine running on gasoline or electricity;
• pump operating at high pressure;
• containers for water and detergents;
• additional nozzles;
• water filters;
• hoses.

The principle of operation of a homemade sink is extremely simple. From the water supply or a special container, after connection, water enters the sink container and is pumped using a pump. In the maximum load mode, the washer operates at a pressure of about 160 bar. For comparison, a stream of water from a conventional tap is supplied at a pressure of five bar.

The next step is to supply water through a hose to a gun with a nozzle. It is advisable to equip the gun with a special nozzle that allows you to change the nature of the water flow - from a concentrated jet to spray. The nature of the water supply should be determined based on how the surface will be cleaned. For example, to cover a large area (veranda area or car body), a fan jet would be the best option. In order to remove fragments of stubborn dirt, it is advisable to use a point version of the water supply.

The role of additions can be a nozzle with a rotary nozzle, a rotating brush and much more. The main advantage of using nozzles is non-contact cleaning of the surface, which significantly reduces the risk of damage to the paintwork of the car body or the decorative surface of the facade tile.

When choosing parts for washing, you should not chase after achieving maximum power. A sink used at home can function normally at an operating pressure of 100 bar. Moreover, for a person who has not previously encountered such a technique, it will be problematic to manage a high-pressure washer.

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Many car enthusiasts today prefer high-pressure washers when washing their car with a regular rag. The fact is that the sink provides a more gentle cleaning of the paintwork. There is no need to wash the car with a sponge or cloth. A directed jet of water allows not only to knock dust off the body, but also to eliminate fairly strong pollution. Taking into account the fact that there is plenty of dirt on our roads at any time of the year, we can safely talk about cost savings in the operation of such devices.

Unfortunately, good sinks are not cheap. Not all motorists can afford to buy them. Therefore, creating a high-pressure washer with your own seems to be quite an interesting option.

How to choose a minisink?

All mini-washers should be divided into 2 groups: professional and household.

Professional sinks

Professional devices are characterized by increased reliability and excellent performance. But they are not available to everyone, as they are very expensive. And there is no need to talk about their compactness. The average weight of such devices is close to 100 kg. Despite the fact that they are mounted on wheels, they are not at all easy to move. The main advantage of professional AEDs lies in their characteristics:

Professional sinks can work without interruption for a long time.

Despite the attractive functionality, such devices are a specific product, and ordinary motorists almost never buy them. Ordinary people have enough household mini-sinks.

Household AEDs

Household mini-sinks can be used not only for washing the car body, but also for solving the following tasks:

• Cleaning clogged drains.
• Cleaning garden tools.
• Cleaning the local area from construction debris.
• Cleaning garden paths.
• Cleaning of walls, facades of houses and fences.

All household high-pressure car washes are divided into subgroups according to the following criteria: water temperature, type of power supply, power.

Household mini-sinks can receive heated water from the outside or heat it up themselves. Non-heated units are slightly cheaper than heated units.

By type of power, household high-pressure car washes are gasoline and electric.

Appliances with petrol engines are considered close to professional car washes. Therefore, they cost accordingly. The cheapest car wash with a gasoline engine will cost the buyer $600. The most expensive one sells for $5,000. No wonder they are not popular in our country.

High pressure household car washes with electric motor choice of a simple car enthusiast. By power, such devices can be divided into 3 groups:

Minisink selection

Choosing a household AED, the following parameters should be taken into account:

1. Performance.
2. Pressure.
3. pump material.

Plastic pumps do not last long and are installed in inexpensive, low-performance machines that can be used to wash a bicycle, motorcycle or garden cart. Not enough to wash the car. Rather, with the help of such a sink, you can wash the car, but it will take a long time due to low productivity.

The car can be easily washed with HPS with brass or silumin pump. These are middle class appliances. Their performance and pressure is enough to wash any car. In fact, it is the best choice for home use.

Of course, if a car enthusiast has extra money, then he can buy a top-class high-pressure household car wash, but for an ordinary car enthusiast, this is a luxury.

If there is no money to buy an AED or there is simply no desire to part with a large amount, then you can make a high-pressure car wash with your own hands.

First you need to prepare the necessary details. First of all, choose a pump. It must meet the following requirements:

To fix the pump in the housing of a homemade AED, you will need a coupling. It is best to choose a soft model, as it will compensate for the misalignment of the shafts along the axes.

Let's not forget about water tanks. It can be a large canister or barrel. It is desirable that the container was fed from the water supply. Be sure to install a filter at the outlet of the tank. It will protect the pump from sand and other contaminants.

High pressure hose with a gun equipped with a nozzle that creates a working jet.

We hide the pump in a separate container and connect it through fittings to the main water tank and a hose with a gun. At the outlet of the pump, we install a regulator with a closed By - pass.

Water tank and pump container can be installed on a frame made of lightweight hollow pipes. The frame itself can be placed on support wheels for ease of use.

It remains only to supply power to the pump, which will begin to pump water from the main tank through a hose with a gun.

Assembling a minisink with your own hands, do not forget to ground the device. Before starting, make sure that all electrical components of the washer are properly isolated from water.

When operating a home-made AED device, you should regularly check the reliability of all fasteners and tighten them if necessary. Try not to load the device to the maximum, as this will lead to rapid wear of the pump. In addition, excessive pressure can easily damage the paintwork of the body.

As you can see, making a homemade karcher is easy. But such a device, although it will be mobile, can still be used only where there is an electrical network of 220 volts. What if you need to wash your car on the road? To do this, you can make a mini Karcher powered by a cigarette lighter.

To create it, we need:

We make a hole in the lid of the canister and insert the fungus from the wheel into it. We securely seal the entire structure.

We also make a hole in the bottom of the canister, and install a fitting, to which we attach a hose with a gun at the end. We connect the hose from the compressor to the fungus in the lid.

The simplest sink is ready to use. It remains to pour water into the canister, close the lid and turn on the compressor. It will provide the necessary pressure of the water jet at the outlet of the gun.

Of course, this mini karcher cannot boast of high pressure, but it is quite enough to knock off road dust or wash detergent from the car body while parking.

Washing your car with a rag and a bucket is fine, but it's somewhat outdated. Have you ever seen such an old-fashioned way to clean cars at car washes? If so, then don't go back there. They obviously save on quality and neglect their employees. So, in this article we will talk about how to do a car wash with your own hands. The piece is very interesting and useful.

High Pressure Car Wash Features

We can say that such equipment is not a luxury. Today it is already a necessity. The fact is that this is the only way to qualitatively wash the engine compartment, the bottom and the body of the car. But most importantly, it does not require almost any effort. All you need is 20 minutes of attention.

The main components of a car wash

Although we will assemble the equipment ourselves, that is, in our workshop, we will need purchased parts, which, unfortunately, are often not possible to find in our garage. The first thing we need is a high performance pump. It must create a pressure of 100 to 200 bar. Such equipment will be quite productive and perfect for the implementation of our goals. When choosing a pump, you need to pay attention to what material it is made of. For example, the piston group is metal or ceramic alloy, and the block heads are brass. Of course, you can go the other way and use a compressor instead of a high pressure pump. It will be cheaper, but the system will be less productive.

Motor selection

We can not do without a good engine. It makes sense to stop at a single-phase motor of low power. By the way, you can find it in your garage or remove it from an old washing machine or similar equipment. In general, the power of 200-300 watts is quite enough. A single-phase motor is an order of magnitude safer than a three-phase one in terms of connection and somewhat more economical, so we will focus on it. But whether a condenser and a gearbox will be provided in your car wash is up to you. Such equipment can extend the life of the system, but significantly complicate the design. In addition, these elements are not mandatory at all, everything will work fine without them. In any case, do-it-yourself car wash is not so difficult. Let's move on to the practical part.

DIY high pressure car wash

Before proceeding directly to the assembly, it is necessary to acquire additional elements. We need a coupling to connect the pump and the electric motor together. It is best to take the so-called soft coupling, which will compensate for the slight misalignment of the shafts.

Another important element is the water tank. In this case, the ideal solution would be a plastic tank. It is easier to carry than metal, and in terms of durability it is not inferior to the latter. It must be connected to the water supply network so that there is always water in our container. At the outlet of the tank, we install a fine mesh that acts as a filter. It will protect the pump from damage by foreign bodies. Well, now let's see how a do-it-yourself high-pressure car wash is assembled.

Construction assembly

In general, there is nothing complicated here. By the way, it is desirable to install a performance regulator. This element is optional. The fact is that an automatic unloading valve is supplied with it, which, in which case, relieves pressure and relieves the load from the pump. The regulator is necessary in order to change the pressure in the system. Therefore, you can set it to the maximum - and the jet will be very powerful - and to the minimum - in a weak mode of operation.

A metal frame is used as a single base for all assembled parts and assemblies. An electric motor, a pump and a gun with a nozzle are fixed on it. All this is interconnected with the help of high pressure hoses. Pay attention to the quality of the connections, as they will be subjected to serious stress during operation. After the structure is assembled, the mini-car wash is ready to go. Check it out. If everything is in order, then you can use it. In case of insufficient pressure, we check the tightness of the connections and the operation of the pump.

Homemade car wash and its features

We have already figured out that it will be much cheaper to buy all the parts and assemble them yourself and get the finished equipment. But I would like to note that a homemade car wash has a number of features. Firstly, its repair is greatly simplified. In particular, we are talking about the replacement of failed nodes. Secondly, you can use any nozzle. If you need to get a concentrated jet, one type will do, if a scattered one, another.

Many people make mistakes at the stage of connecting the sink to the central water supply. The fact is that the length of the hose should not exceed 7 meters. This will eliminate possible pressure surges. If you neglect this requirement, then nothing good will happen. In the case when the mini-car wash is powered by a tank, you need to carefully choose its volume. It is advisable to take a container of at least 30 liters and equip it with a check valve so that during operation it is possible to build up pressure. If you often wash a heavily soiled car at low temperatures, you will need a homemade car wash foamer. The price of purchased equipment is about 5-9 thousand rubles. Agree, the amount is rather big. It can be made from a conventional plastic sprayer, which is then connected to the sink.

Need to take into account

In general, we figured out how to make a car wash. There is nothing complicated, as you can see. But there are a few simple rules that will help extend the life of such equipment. Periodically it is necessary to check the reliability of connections, including threaded ones. If they are loose, don't forget to tighten them up. Since the tank has a filter element in the form of a mesh, it will gradually become clogged. If it is not cleaned, then in the end the permeability of water to the pump will decrease. Do not forget to periodically inspect the filter, if necessary, change or clean. Well, when assembling the structure, use the popular drawings of car washes, one of which you can find in this article. They will help you navigate what's what, and carry out the installation correctly.

Conclusion

Do-it-yourself car wash is easy. How much longer can you sit and think: “Why don’t I do the sink myself?” If in the end you take it and start, then the assembly work will end in a few hours. In any case, it makes sense to remember that the paintwork of your car is not eternal and needs to be carefully monitored. By the way, many car enthusiasts do not recommend using car washes with a pump that creates a pressure of more than 200 bar. If such equipment is used at full capacity, then there is a chance of damaging the paintwork of the car. And the loads on the engine and working bodies of the units increase significantly. Even if it becomes necessary to create a high pressure, use it in short-term modes. In principle, this is all that can be said about how to build a car wash.

In today's world, almost every family owns a car. At the same time, not every motorist can use the garage as a place to store useful things. It is quite obvious that all cars, without exception, sooner or later require external cleaning. Sometimes, light, superficial. And for this you don’t need to stand in line at a car wash or spend money on purchasing a washing machine. In order to save time and money, you can make a mini-sink with your own hands: always carry it in the trunk and use it whenever necessary in any secluded place.

Materials for work:
1. Plastic canister with two necks for draining - 1 pc.;
2. Filling hose for a washing machine (length - 2 m) - 1 pc.;
3. Watering gun on a telescopic rod - 1 pc.;
4. Quick-release fitting - 1 pc.;
5. Valve for tubeless wheels (spool) - 1 pc.;
6. Rubber gasket (inner diameter 15 mm, outer diameter 24 mm) - 1 pc.;
7. Coupling - 1 piece;
8. A screwdriver, a thick drill, a feather drill with a diameter of 22 mm, silicone sealant or rubber glue, an automobile compressor.

Stages of work:

The first stage: we mount the air inlet.
Having collected the necessary components, remove the lid from the drain neck of the plastic canister. Important: in the future, when using a mini-sink, the canister will need to be placed on its side, with the filler hole down (for direct water outlet under pressure), so we leave the cover of this hole to mate with the hose. With a thick drill we make a hole in the removed cover.

We apply silicone sealant on the side of the valve for tubeless wheels (colloquially - spool).

We put the valve into the opening of the lid, carefully press it, dry it.

After the sealant has hardened, we screw the lid onto the drain hole of the canister.

The second stage: we mount the outlet for the water.
Remove the cover from the second hole of the canister. With a pen drill we make a hole in it corresponding to the diameter of the coupling.

We insert the coupling into the drilled hole.

For a more durable fixing of the coupling, we shed its joint with the cover with silicone sealant, and dry it.

From one end (preferably curved) of the inlet hose for the washing machine, cut off the nut and its fastening.

The fastening itself will not be useful in further work, but we fasten the back side of the coupling with a nut, having previously applied silicone sealant to it.

After drying the sealant, screw the lid onto the opening of the canister.

The third stage: we connect the hose to the watering gun.
The use of a washing machine inlet hose is due to its ability to withstand high water pressure. We put the cut off part of the hose into the nut of the quick-release fitting.

We fix the hose cut in a quick-detachable fitting (it is clamped with a special fastener).

We twist the main fitting and its nut.

We wind the fitting on the watering gun on the bar.

The fourth stage: we connect the hose to the canister.
To prevent air from escaping when water is supplied under pressure, we insert a rubber gasket of the required diameter into the second nut of the inlet hose.

Today, you no longer need strength and time to fight dried-on dirt and dust that has clogged into nooks and crannies, because every year new models appear on the market. high pressure washers. These devices are used to wash windows, cars, walls and doors of houses, barbecues and other items that are difficult to clean with a rag or brush. A strong water pressure copes with this task much more efficiently and saves money spent on washing a car in a service, while water consumption is also minimal. Therefore, it is useful for everyone to have such a sink in their arsenal.

The leading companies in the production of high pressure washers are the German companies Bosch, Karcher (hence the second name of the sink - Karcher) and Elitech. The average price of these sinks on the market starts from 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

The main component of the sink (or Karcher) is the engine that creates the necessary water pressure. A pump or a motor is suitable (it is not necessary to buy a new one, take a working one from an old car), the motor is built into the sink body and must be connected to a power source. For the sink body (body), choose a durable material, thick plastic or metal. Even if you get a durable case, it's best not to use the sink for more than three hours in a row. This will disable the sink in a short time.
Hose attachments are available to facilitate the cleaning process - brushes of various hardness, soft rollers, standard sprayers. With the purchase of a couple of attachments, you can expand the functions of your sink, using it as an automatic mop or steam cleaner (it is required to supply the sink with a heater).

Internal pressure

The higher the pressure inside the housing, the stronger the jet of water from the hose, which means that the dirt lags behind more easily. Set the pressure carefully, because water can simply break a fragile car part or glass, 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 a hose, a turbo cutter. It will help wash tires, wheels, remove dirt accumulated in the cracks. You can use the mini-sink both outside and inside the cabin. If you are using a turbo cutter, you will need 160 bar pressure.

Electric pump

Before purchasing and using a pump in a sink design, read how to choose the right device.
The material of the pump determines the wear resistance. The unfortunate option is a plastic pump, which will soon fail if used 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 sink

To wash worked properly follow these guidelines.

• Be sure to check the performance of the sink before using it, this will save your time and health.
• The filter installed in the car wash should be cleaned and replaced after each use.
• If the washer uses electricity in operation, and the source is unstable, supply it with a battery.
• Do not let children use the sink.
• If repairs are needed, don't hesitate to do so. Replace failed sink components.
• Update your device pads.
• Protect your sink from temperature fluctuations.

How to make a karcher yourself

Although car washes have achieved widespread use, their cost is high. So, if you want to do your own washing, you need:

• canister;
• irrigation hose with a gun;
• pump;
• Union;
• cover for the canister;
• tubeless wheel fungus;
• rubber gasket;
• coupling.

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

• drill;
• sealant.

First step. The choice of components.

The required volume of the canister depends on you and the purpose for which you use the sink: a five-liter canister is enough for a car. Drivers carry a car wash in their luggage, and therefore choose a case both in terms of volume and dimensions.
The irrigation hose must be strong and flexible, it must not be twisted or broken. Nylon-braided hoses are considered durable. A hose consisting of several layers is more reliable. Don't skimp on this part. There is only one requirement for a pistol: it must be firmly attached to the hose.

The pump can be foot or automatic. The high power of this pump will not be useful to us, so do not buy an expensive one. Using an automatic pump is much more convenient than using 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 decisive role is played by the cost of the pump, automatic is three times more expensive.
Choose the fitting and the 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. Canister preparation.

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

Third stage. Cover collection.

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 fungus of a tubeless tire into it.

Fourth stage. Construction collection. Additional functions.

Tighten the canister tightly with a lid, connect the cord from the pump to the fungus, attach the free end of the hose to the hole made in the canister using a fitting. Homemade sink is ready. The principle of operation of such a sink is simple: using a pump, air is pumped into a canister of water (while the canister is not filled with water to the brim). Pressure up to 0.3 bar or higher if your canister can handle it. Under the influence of pressure, water shoots out of the gun when the handle is pressed.
If you will use the sink during the cold season, equip your sink with a special burner for heating 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 sink. If the sink runs on fuel (gasoline or diesel fuel), then there will be no problems with moving. When planning an electric car wash, take care of a serviceable and affordable source of electricity. In this case, you are unlikely to be able to freely transport the sink from place to place, but you do not have to spend money on expensive fuel.
Decide in advance for what purpose you use the sink. 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 an industrial 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 necessary, set the automatic water supply to save.
If it is possible to save on water consumption, then it is impossible to save on the purchase of washing components. To prevent the item from becoming dirty after washing, purchase special filters. You do not need an expensive filter that purifies water to a drinking state. The filter is needed to purify water, at least from litter, which will disable the sink.

You can even earn money by designing a pressure washer if you open a car wash. The main thing is that the sink you made works. Using the 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 is cost-free. The following is an instruction for creating a more complex model:
US you will need:

• windshield washer motor;
• irrigation hose with a 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 screws;
• two-core electric wire 5-7 meters long;
• plastic sleeve;
• power cord;
• car wash brush

Additional materials:

• sealant;
• drill.

First step. Create a hose.

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

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 out of it with a shuttle. The motor is fixed on the second bottom of the canister; for this purpose, a home-made clamp is used, which can be made from the remains of a cut canister. To do this, we need an M8 bolt and some sealant.
The wires are also fixed with 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 fixed. 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.

DIY high pressure washer 41 photos: