Most people who want to save on the work of specialists are trying to find as much information as possible on how to properly route water pipes. Thanks to modern devices made of durable, but lightweight materials, you can handle the wiring in the bathroom and toilet on your own.

How to start right

The layout of pipes in the toilet and bathroom should not be drawn up by eye. All results must be obtained through accurate measurements. First of all, you need to calculate the consumption of materials and choose a plumbing model. It is important to take into account that with a separate toilet and bathroom, the wiring is carried out separately for each room, since communications are connected into a common system and do not exist in a separate manner.

Fig 1. Wiring diagram

At the next stage, you need to mark the pipes that need to be brought in the future for each device. For beginners in this situation, you can imagine the following scheme:

  1. Bathroom or shower.
  2. Wash basin. Hot and cold water supply
  3. Toilet. Connection to cold water supply and public sewerage
  4. Washing machine. Supply of sewerage system and cold water supply.

It remains, on the basis of the data obtained and measurements, to build a general scheme for distributing sewer and water pipes in the bathroom and toilet.

Classification of communication wiring types

Before you start piping in the bathroom with your own hands, you need to familiarize yourself with the types of structures.


So water goes to the residents of houses and apartments. Special tees are used at each water intake, and the end user is connected at one of the outlets. This type is relevant if the operation is carried out by a small number of people.

Fig 2. Sequential


However, for an apartment building, this type can be a good option. But there is one serious nuance: the impossibility of turning off one device for subsequent replacement or repair work.

As for the advantages, we note the ease of installation. The design does not involve complex and intricate schemes. Also, wiring does not involve large material costs. A minimum amount of materials is required: pipes, connecting elements.


The consumer is separately connected to the main line. To accomplish this task, a special tool called a collector is used. The main purpose is to distribute the flow of water.

When creating a more complex system, each manifold has additional equipment in the form of a shut-off valve. Collector-type wiring is considered the best solution. First of all, constant pressure drops are excluded, which makes it possible to deliver water without interruption to all consumers. In addition, with a minimum water pressure, you can turn off the supply to one of the bathrooms to increase the flow. In addition, the system allows you to turn off plumbing fixtures if necessary, repair work or complete replacement of devices.

Fig 3. Collector

A leak can form not only in the system, but also around it. To solve the problem, it is enough to turn off the water supply and call professionals.

Mounting methods

To carry out the installation, you need to choose your method of work. The open type involves fastening pipes directly to the wall, or under the floor. This solution allows you to quickly complete the installation process and save money. However, technical adaptations suggest a deterioration in appearance.

Fig 4. Wiring methods

Open gasket


Benefit: constant monitoring of the state of the system. If a leak appears, it is easy to trace. Installation does not involve difficulties. Installation and fastening of all component parts is carried out on site. The investment is minimal.

Fig 5. Open

But the principle is not without significant drawbacks: there is a high probability of mechanical damage to the constituent elements. When using steel pipes, it is not so easy to damage the structure. All communications cannot be hidden, so they will always be in sight. The only solution is to choose the optimal place for installation, which will not catch the eye when entering the space. An alternative would be to use a special box. The market is full of modern products, such as false walls. A beginner should take into account the fact that a decorative solution should not affect the functionality of the system. It is also necessary to monitor the development of corrosion.

Hidden styling

Installation is carried out in special voids of the building structure. As a rule, they look like small recesses or niches, where the size is slightly larger than the diameter of the pipes.

One of the options for a closed type is laying with a screed. Concrete is installed on top of the parts. Among the main advantages, one can single out a neat appearance of the resulting structure. Since the outlets of the pipelines end in the walls, they cannot be mechanically damaged. But the principle is not without important nuances. The work is laborious and also requires significant material costs. It is also impossible to control his condition.

Fig 6. Hidden

Carrying out hidden installation work involves laborious work for gouging the strobe and cutting it out. It is allowed on the territory of private houses, where the main material for construction is brick. On the territory of the apartments there should be a free layout, for example, a studio. In an apartment, most often the thickness of the walls is greater, in other situations there is always a risk of non-compliance with the developed standards.

A large load is placed on the load-bearing walls, which leads to a weakening of the strobe. If the thickness of the walls is increased, then such changes are unacceptable. Regardless of the type of structures, it is strictly forbidden to mount gates in slabs. Alternatively, the gasket can be installed behind the skin or in the screed. Suitable for copper or steel pipes, as it does not imply free access to the system.

The use of propylene pipes


The layout of polypropylene pipes in the bathroom and toilet does not cause great difficulties. If it is necessary to carry out cold water supply, it is first necessary to prepare pipes with a diameter of 25 mm, where the wall thickness will be at least 2.8 mm. For hot water supply, it is better to choose reinforced pipes with an identical diameter, but so that the wall thickness is from 3.2 mm. Polypropylene is a synthetic material that is durable and lightweight.

Fig 7. Scheme of work with polypropylene pipes

For independent work, it is recommended to follow the following procedure:

  1. To begin with, cut the pipes (it is recommended to use Rehau pipes), having previously measured the length. It is worth preparing a special cutter, because burrs often remain due to a hacksaw, and perpendicular cuts cannot be made at all.
  2. Take the trimmer and process the pipe by chamfering. If the pipes are additionally treated with foil, you must first remove it with a shaver
  3. For welding, a dor and a coupling are installed on the soldering iron in accordance with the diameter of the pipes. It remains to heat the device to 260 degrees
  4. The end of the pipe must be cleaned of dirt and dust, insert the soldering iron into the coupling. Each part is heated for a certain amount of time. As a rule, a special table is attached to the purchased pipes. On average, the time does not exceed 5 seconds
  5. It remains to do the docking. It is important to control the complete alignment of the axes and wait until the parts have completely cooled down.

Pros and cons of combined and separate bathrooms

To organize the normal use of the toilet and bathroom, it is necessary to create a competent drainage system. If you decide to do the connection and wiring yourself, you need to understand not only the principle of operation, but also what configurations of bathrooms exist.

Fig 8. Separate and combined bathrooms


Considering the arrangement of apartments and residential facilities, there are often two types of bathrooms: separate and combined. In the second case, this is a whole space without partitions. In the first case, the toilet and bathroom have separate entrances to the space. The choice is subjective. However, from a sanitary point of view, it is worth noting that a combined bathroom is not the best solution. The use of a combined bathroom is relevant in the following situations:

  1. If the separate spaces of the toilet and bathroom are too cramped and allow you to fit basic hygiene items. When combined in a combined bathroom, a large share of the space is sometimes freed up, allowing, for example, to move a washing machine or mount a bidet.
  2. If initially the area of ​​\u200b\u200bthe room is large (from 10 sq. M).
  3. The use of the bathroom is limited to a limited number of people.

By choosing the right wiring method, you can independently achieve the optimal result and create an uninterrupted system for supplying cold or hot water.

Features of communication in the apartment building

After determining the type of wiring and drawing up a competent action plan, it is important to ensure that the input of the communication system is carried out in the correct order. First of all, check that a shut-off valve is present on the pipes. In the event of a leak, it can be used to quickly shut off the water. In the future, we look at its condition in the process of effective use.

Fig 9. Wiring in an apartment building

As a rule, modern equipment is used in new buildings. The use of a ball valve is recommended. It is important to remember that the device must be opened or closed smoothly so as not to damage the structure. You also need to install special protection that will prevent leaks. Then the self-cleaning filter is installed. With its help, water undergoes high-quality water purification, eliminating third-party impurities, heavy metals. If necessary, you can put water meters, if necessary. You can also install a water flow regulator. It is installed at will or if there are constant difficulties with pressure.


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