The situation when the water supply in a house or country house is unstable is familiar to many owners of household appliances. A washing machine that requires constant pressure in the system often becomes useless in such conditions. The solution to the problem is autonomous water container for washing machine, allowing you to organize the supply of liquid by gravity or using a pump.
Using a tank is not just a temporary measure, but also a way to extend the life of the unit. Filtration and settling of water before entering the machine reduces the load on the heating element and prevents the formation of scale. It is important to understand that not every barrel is suitable for these purposes, and the connection diagram requires careful attention to detail.
In this article we will look at how to choose the right volume, material and location for installing the tank. You will learn what nuances arise when installing a system with a check valve and how to avoid common mistakes that can lead to flooding of the room.
Why do you need an additional washing tank?
The main reason for installing a tank lies in the operating features of modern technology. Most models Indesit, Bosch or LG equipped with solenoid valves that open only at a certain pressure in the water supply. If the pressure is weak or water is supplied according to schedule, the machine simply will not start the wash cycle.
The second, no less important aspect is the quality of the liquid. Centralized water supply often supplies water with impurities of rust, chlorine and sand. Storage capacity acts as a settling tank: heavy particles settle to the bottom, and chlorine partially evaporates. This directly affects the condition of the drum and internal pipes.
⚠️ Attention: When using water from open sources or wells, be sure to use a pre-filtration system, even if the water appears clean. Microscopic sludge particles can quickly damage the inlet valve.
In addition, the presence of a tank allows you to save resources. You can draw water at night, when tariffs are lower, or use rainwater for pre-soaking and rinsing, which is especially important for summer cottages.
Use opaque containers or place the tank in a dark area to prevent blooms and algae from growing inside the tank.
Selection of tank material and volume
The market offers many options for containers, and the choice depends on your needs and operating conditions. Plastic tanks made of food-grade polyethylene (HDPE) are the most popular. They are lightweight, do not rust and are inexpensive. However, it is worth remembering that some types of plastic can begin to emit an unpleasant odor over time.
Stainless steel is a more expensive but durable option. Metal containers resistant to temperature changes and mechanical damage. They are ideal for installation outdoors or in unheated areas where plastic can become brittle in the cold.
As for volume, here you need to build on the capacity of your washing machine. A standard wash cycle uses 40 to 60 liters of water. For comfortable use, it is recommended to choose a tank with a volume of at least 100 liters, which will allow you to carry out 1-2 full washes without refilling.
- 🔹 Food grade polyethylene: light, cheap, afraid of ultraviolet radiation.
- 🔹 Stainless steel: strong, durable, expensive, heavy.
- 🔹 Technical plastic: cheap, but may have an odor and is not suitable for drinking water.
- 🔹 Composite materials: combination of strength and lightness, high price.
When choosing, pay attention to the tank neck. A wide hole will simplify the process of cleaning the internal surface from sediment, which will inevitably accumulate over time.
Connection diagrams: gravity flow and pumping station
There are two main ways to transfer water from the tank to the washing machine. The first option is gravity (gravity). To implement it, the tank must be installed at a height of at least 2-3 meters above the level of the entrance to the machine. This creates the necessary pressure, although minimal.
The second, more reliable option is to use injection pump. A small electric pump (often called a "pump") is installed on a hose between the tank and the machine. It turns on when the inlet valve of the washing machine opens and provides stable pressure, regardless of the water level in the tank.
Why might gravity feed not work?
Modern washing machines have flow sensors. If the water flows too slowly, the electronics may interpret this as a lack of water and stop the program with an error.
The connection diagram with the pump is as follows: container → coarse filter → stop valve → pump → check valve → washing machine hose. This sequence protects the equipment from water hammer and reverse flow of water.
☑️ Checking the water supply system
Required components and fittings
To assemble an autonomous water supply system you will need a number of additional elements. The quality of the fittings directly affects the tightness of the structure. Using cheap plastic adapters can lead to leaks that are difficult to notice at an early stage.
A required element is check valve. It prevents water from flowing from the hose back into the tank after turning off the pump, and also protects the system from water hammer. Without this element, the pump may run idle or wear out quickly.
| Component | Function | Material | Approximate price |
|---|---|---|---|
| Coarse filter | Sand and rust retention | Brass/Plastic | Low |
| Electromagnetic pump | Creating pressure | Metal/Plastic | Average |
| Check valve | Reverse current protection | Brass | Low |
| Stopcock | Feed shut off | Brass/Bronze | Average |
Also don't forget about the hoses. For connection, it is better to use reinforced hoses designed for pressure, even if the system is gravity-fed. Regular garden hoses can flatten or crack over time.
Step-by-step instructions for installing the system
Installation of the system begins with preparing the installation site. The tank must be on a solid base that can support the weight of the water (1 liter = 1 kg). If you are installing a tank in the attic, make sure that the floors can withstand a load of 100-200 kg.
A tap or fitting for connecting a hose is installed at the bottom of the tank (or in a pre-prepared hole). Use sealing tape FUM tape or tow with sealant for threaded connections. This is a critical point because the plastic of the tank can become deformed by the weight of the water, causing a weak connection to leak.
Next, the pump group is installed. It is best to mount the pump on a vibration-isolating pad so that the hum is not transmitted to the structure of the house. The electrical connection to the pump must be made through a waterproof, grounded outlet.
⚠️ Attention: All electrical connections near water must be protected from splashes. Use sockets with a protection class of at least
IP44and be sure to connect the system via an RCD.
After assembling all components, perform a test run. Open the water supply tap from the tank and turn on the pump. Carefully inspect all joints for leaks. Only after making sure it is tight can you connect the hose to the washing machine.
Maintenance and winter preservation
Operation of the autonomous system requires regular maintenance. Once every 3-6 months it is necessary to drain the remaining water from the tank and rinse it from slimy deposits. Coarse filters also require periodic washing or mesh replacement.
If the system is installed in an unheated room (dacha, garage), it must be preserved for the winter. When water freezes, it expands and can rupture plastic pipes, the pump housing, or even the tank itself. Drain all water from the system and blow out the hoses with a compressor.
It is also better to use the drain mode for your washing machine in winter if it is left in the cold. Residual water in the machine pump can freeze and block the impeller.
Regular cleaning of the tank and replacement of filters is the key to long service life of not only the water supply system, but also the washing machine itself.
Frequently asked questions (FAQ)
Is it possible to use a regular fuel barrel?
Strongly not recommended. Even after thorough washing, traces of petroleum products remain in the micropores of the plastic, which can ruin the laundry and damage the rubber seals of the washing machine. Use only food grade containers.
How tall should the container be to operate without a pump?
For most modern washing machines to operate reliably in gravity mode, the height of the water column above the entry point into the machine must be at least 3-4 meters. In reality, it is difficult to provide such pressure, so installing a pump is preferable.
Is it necessary to install a check valve if there is a pump?
Yes, definitely. The check valve prevents water from the hose from flowing back into the tank after the pump is turned off. Without it, the hose will be empty, and the next time you start the pump, it will run dry or take in air, which will lead to its failure.
How to deal with water bloom in a tank?
Use opaque bins or paint clear ones a dark color. Install the tank in a shaded area. Periodically (once a season) disinfect the container with special means or a weak bleach solution, followed by thorough rinsing.
Will such a system affect the warranty of the washing machine?
Formally, the use of water of non-standard temperature or pressure may result in a refusal of warranty repair if the breakdown is related to the filling system. However, if the pump and filters are installed correctly, the water parameters meet the manufacturer’s requirements.