One of the main tasks when installing communications on the site is to create a system for draining wastewater. In this regard, to think about creating a sewage system in the bath should be at the design stage of the building itself. To complete this work is quite possible and independently. To do this, you must follow certain rules and have basic skills.
The first thing to note: it is most preferable to choose a drainage type of sewer system. Its main advantages are economy and simplicity. The design of such a system involves the independent transportation of water to a sump or well under the influence of gravity.
Sewer system components
When using sewage-type sewers, it is not necessary to create gaps in the floor. It is enough to mount the floor in such a way that there is a slight slope towards the drain collector. The structure of the sewage system made according to the drainage type includes certain elements:
- Drainage well;
- Gutters;
- Several sewer pipes of the required diameter;
- Protective grilles for sewage.
Lattices are used to clear a stream of water of various garbage. This prevents the formation of blockages in the sewer system. Then the drain falls into the gutters. After passing through the pipe system, water is in the well.
To determine the required volume of the drainage well, you should use approximate calculations of the future quantity of the drain. But in any case, its diameter should be more than 1 meter. The depth of the well is defined as the level of freezing of the soil plus 50 cm.
The bottom of the well needs to be covered with gravel or expanded clay, and after that, a layer of soil is poured on top and compacted.
Preliminary work and material selection
Due to the low mechanical strength, PVC pipes should not be used on the outside of the drainage system. For this purpose, it is better to use pipes made of high density polyethylene. Plus, it will be easy to connect other drainage elements to the sewage system from such pipes.
The gutters used for the gutter are mainly made from asbestos or galvanized iron. This ensures that these components of the sewer system are not susceptible to corrosion and guarantee a long service life.
The flooring in the bath can also be considered as one of the components of the drainage system. By the method of arrangement, they are leaking, as well as leaking. If the first option is used, a gap of about 0.5 cm is left between the flooring boards. The boards themselves are not fixed in this way so that they can be quickly removed. This is necessary to dry them outdoors. In the second version, one of the edges of the flooring is mounted slightly higher than the other. Thanks to this decision, the floor is obtained with a slight bias in one of the parties. To collect the flow of water under the lower edge of the floor have a tray, the purpose of which is to redirect the drain into the pit.
Important! When designing a sewer system, the presence of a ventilation riser should be provided. Typically, a pipe made of metal or asbestos with a diameter of 10 cm is used for its installation.
Also, one should not forget that the creation of a sewage system in a bathhouse should be coordinated with the state bodies responsible for sanitary supervision, and the system itself must comply with certain norms and rules. This will avoid possible difficulties and contentious issues that may appear in the future.
Creation of a sewer drainage system
The installation process of the sewer system takes place in several stages:
- Initially, at a distance of 50 cm from the foundation, a pit is excavated approximately one and a half meters in depth. Further from it, a trench is created leading directly to the well, which is usually located at a distance of about three meters from the bath. The shape of this trench is best done in the shape of the letter U.
- Then, work is done to align the walls of the trench and the well. Then they are smeared on top with a clay layer.
- After inside the trench, sewer pipes are laid. They should be made of cast iron, asbestos or ceramics. The use of steel pipes or wooden gutters is not recommended because of their extremely short service life (high susceptibility to corrosion and also rotting).
When performing installation of the sewer system, it is worth paying attention to some important nuances:
- Pipes in trenches should be located below the level of soil freezing characteristic in the area.
- Pipe laying should be carried out with a certain slope directed towards the drainage well. This is necessary to completely release the pipes from water under the action of gravity.
