Sewage system can not function fully without installing inspection wells. Installed sewerage wells help to monitor the operation of the system, perform its inspection, rinsing and cleaning.
Such wells are installed throughout the network, its branches, bends, at the junction of two or more sewer lines, changes in the slope and the diameter of the outflow pipes. On a straight line, the sewerage wells are installed in accordance with the regulations in force and the distance from one to the other directly depends on the diameter of the outflow pipes. So, if a pipe with a diameter of 150-600 mm is laid, the distance between adjacent wells must be at least 50 meters, when installing pipes with a diameter of 125 mm, this distance should not be more than 40 meters.
Sewer wells of various shapes and sizes are made. In their shape they can be trapezoidal, rectangular or round. Familiar to all round wells on pipelines, where pipes with a diameter of up to 500 mm are laid, should have a diameter of the inner space of 1000 mm, which makes it possible to be placed freely to one worker for carrying out the necessary repair or cleaning works.
Rectangular sewer wells are laid out of bricks. They should have the following dimensions: at least one meter in length, within a width of 90 cm. For the construction of square manholes, a 100 grade mortar is used in dry soils, and in the wet soils - grade 150. In the case when the installation of round sewers from Standard reinforced concrete products is impossible for a number of objective reasons, then for their construction a special building brick is used, which allows not only accurate laying, but also a reduction in the consumption of mortar.
Often, buying a suburban remote from the civilization site, the device of the sewer has to take care of yourself. In this case, plastic sewage wells are the most suitable for its organization , which weighs much less and does not require the use of lifting equipment to install them. On its own site, depending on its area, the sewage system is arranged according to the same scheme as the central municipal sewerage system. Sewerage wells are installed at the branches of the network, its connections, changes in slope and diameter. The feature of the inspection well made of plastic is the presence of a hole for connecting the discharge pipes, which is not found in reinforced concrete, where the holes have to be pierced independently. Another advantage is the complete sealing of the wells in the places of supply of pipes and the durability of the product. A long service life is due to the qualitative characteristics of the material, which, in its basic properties, is not rotting, does not absorb moisture, stably tolerates the impact of the corrosive environment with which it is necessary to interact during operation.