The technological scheme of treatment facilities for domestic wastewater includes 4 stages: mechanical treatment, sedimentation, biological treatment and final treatment with ultraviolet or chlorine. Further, the water can be reused or dumped into a natural body of water.

A gutter funnel for a flat roof prevents puddles and roof leaks. The material of construction is selected in accordance with the material of the roofing. By type, the traditional and gravitational-vacuum systems are distinguished.

Laying sewer pipes in a trench requires compliance with sanitary norms and rules: take into account the amount of water consumed, the level of soil freezing, the necessary slope. For a private house or garden, plastic pipes are chosen. The city highway is made of cast iron, ceramics, concrete or steel.

Storm water inlets for storm sewers collect melt and rain drains, filter them from large debris and direct them to the sewer network. Depending on the installation location, rainfall and potential load, plastic, cast-iron, concrete or steel structures are chosen.

Rubber sealing cuffs for sewer pipes prevent leakage at the joints, ensuring long uninterrupted operation of the drainage system. As a rule, products made of rubber mixed with rubber, silicone or polyurethane are used.

PVC-U pipes for internal and external sewerage are resistant to chemical and organic compounds, withstand high internal pressure, are easily mounted, and are not subject to corrosion. They do not withstand minus temperatures, therefore, they need warming.

Combining stormwater and drainage is possible in one trench, but at different depths. Drains are made with perforation to collect groundwater, they are located below. Discharge of sewage is organized in one well.

A plumbing sewer tee is used to connect pipes of different diameters, branches and turns of the drainage line. Parts are made of polymers, steel, cast iron, asbestos cement. Type of fastening: glue, welding, socket, coupling, thread.

The design of treatment facilities depends on the physico-chemical parameters with which you will have to work. The methods for treating industrial and domestic wastewater differ significantly, as industrial waste may contain substances that are hazardous to humans and the environment.

Local treatment facilities for domestic wastewater treat waste mechanically and biologically, after which the liquid goes into the ground, discharged into a reservoir, or used for domestic and technical purposes.

Sewer pyaternik is used when several plumbing fixtures are connected to the riser.This is a two or three-plane cross with five exits. Made of plastic or cast iron. Polymer parts are cheaper and easier to install.