Do-it-yourself connection of the dishwasher to the water supply and sewer system

You can connect the dishwasher to the water supply and sewerage system yourself. There are several ways to do this - cut directly into the pipe or integrate the hose through the mixer. Step-by-step instructions and practical tips are described in this article.

How to ensure a secure connection

To properly connect the dishwasher to the water supply, you must take into account 3 important safety requirements:

1. When planning placement, it should be kept in mind that the unit should be located at a distance of no more than 1.5 m from the sewer. The reason is not the hoses, which can be made longer, but the operation of the pump. You also need to understand that connecting the dishwasher to the sewer with unnecessary connections can lead to leaks in one or more places.
2. The socket must be located at a sufficient height (at least 40 cm from the floor), because the device’s network cable is quite short. It is advisable that the socket body be made of moisture-resistant materials. If there is no separate outlet, it is better to install one. Connecting the device through a surge protector or tee is unacceptable.
3. You can connect the dishwasher to the water supply yourself if you have the appropriate skills. It is important to ensure that the system is completely sealed to avoid flooding.

Which pipe is better to connect to?

Connecting the dishwasher drain to the sewer system is carried out by tapping into a common pipe. On the other hand, it is not always clear which water pipe to connect the inlet hose to. There are 2 options - hot and cold water.

Moreover, in most cases, the dishwasher is connected to the water supply directly to the cold pipe (this requirement is specified in the instructions). There are quite a few reasons:

1. Hot water contains quite a lot of additives and other impurities, including lime and rust. They damage the filters, inlet hose and drainage system.
2. Hot water is turned off much more often than cold water, including for a long period (1-2 weeks) while preparing the heating system for winter.
3. Connecting the PMM to the sewer and cold pipe is also due to the fact that the optimal temperature during washing should be in the range of 40-60 degrees. In a hot pipe it can be much higher (70-80), especially in winter. It is impossible to reliably determine the temperature level, since no one regulates it.
4. Due to the high temperature, the sewer pipe under the dishwasher will not be damaged, since it is adapted to hot water. But due to exposure to high temperatures, their ion exchanger may fail. This device softens the water and plays a very important role. If it stops working, the heating element and other parts will gradually wear out.

Materials and tools

You can do the drainage under the dishwasher yourself, even if you have minimal skill. To do this you need to purchase some spare parts:

• flow filter to prevent clogging of the mesh and inlet hose; it also helps protect the non-return valve in the dishwasher;
• FUM tape;
• hoses and adapters (if the length of the hose included in the basic kit is not enough);
• tee (0.75 inch thread) made of bronze or brass (this is the most durable option); the part must be equipped with a shut-off valve;
• fasteners - along with self-tapping screws, these can be special clamps and dowels;
• You can also purchase an “Aquastop” hose, which will provide better protection against leaks than the regular part included in the kit.

When planning to connect the dishwasher to the siphon, you should prepare the following tools:

• set of screwdrivers (curly, regular);
• wrench;
• pliers;
• building level.

Step-by-step instructions for connection

There are several ways to connect the unit to the sewer. If there are connections for the dishwasher, you can simply cut the hose into the sewer pipe. You can also connect it to the sink siphon. This and other methods are described below.

The easiest ways

There are several simple ways to connect a dishwasher to a pipe:

1. If there is a free outlet, the unit can be connected directly to it. Moreover, the height of the dishwasher drain should be at least 40 cm relative to the floor surface. This will reliably protect the camera from the penetration of foreign odors.
2. The drain hose is integrated into the siphon fitting. Some models come with 2-3 or more fittings. But if the already installed siphon does not have a free fitting, you must first purchase another siphon.Next, a drain hose is connected to it, and the waste liquid will flow directly into the sewer.
3. Do-it-yourself connection of a dishwasher to the sewer is often done with a washing machine, which is also located in the kitchen. In such cases, a tee must be installed between the sewer pipe and the siphon. The drain hoses of both devices – the PMM and the washing machine – are connected to 2 outputs.

Connection via mixer

Outlets for the dishwasher are quite simple to integrate with the sewer through the mixer. To do this, proceed as follows:

1. Close the valve.
2. Unscrew the hose leading to the mixer from the fittings to the pipe.
3. Place the tee together with the tap.
4. Connect the mixer hose to one of the outlets, install the unit hose and the flow filter to the other.
5. Install a check valve on the dishwasher drain.
6. Wind FUM tape onto the thread. Sealing is carried out carefully, making at least 10 revolutions.

Pipe tapping

If the unit is located next to a pipe, installation is even easier. The sequence of actions is as follows:

1. Close the inlet hose.
2. Using a grinder, cut the pipe and install the release coupling.
3. A ball valve is screwed to it.
4. The unit hose is screwed onto its outlet.
5. Seal the thread when connecting the dishwasher (for this use FUM tape).

Thus, the connection method depends on the distance at which the device is located from the sewer pipe. In any case, the PMM must be stirred so that it is close enough (up to 1.5 m). Thanks to this, the unit will work for a long time, and the pump will not fail prematurely.