care problems runoff in cities
Every home, enterprise, public institution needs in drinking and technical water, which constitutes the waste water. Internal sewerage system is connected to the street sewers, except in cases when the individual wastewater treatment plants are cleared.
There is always a bias for drainage, therefore it is not difficult to connect the sanitary equipment of the building to the public sewerage network. But in cities it often happens that the room is below the level on which the sewage collector is located and there is no free flow. If it does not fill up actively, it is not possible to remove effluents from such premises. However, if the collector is subject to strong filling, a backwater arises that leads to flooding with a reverse current of water.
To solve this problem, a non-return valve is used to protect the premises from flooding. Also, in the low-lying areas of the city, a pressure sewer is used, which can more effectively take up drains. It is possible to install individual pumps that improve drainage from low areas of the city.
Note! For these purposes it is recommended to use pumps that operate autonomously.
Pump - help drowning
The problem of sewerage piping is acute for residents of private houses. We'll figure out how to do this and connect to the collector's output. This is the main task if there are no individual treatment facilities in the house. For homes located on a hill, it is very simple: do sewer supply with access to the street network of communication and waste by gravity fall into them. It is more difficult if the house is below the collector level. Then it is necessary to make a pressure sewage system with a pump.
There are two types of pipes for such sewerage:
- Polyvinylchloride( PVC);
- Polyethylene( PE).
Pipes with diameters up to 90 millimeters are supplied in coils, which reduces installation time. The pump station can be located both inside the house and outside. The pump can operate for a long time without overheating, thanks to a robust design that gives the machine more strength.
Note! In a reliable pump, all parts are made of high-strength steel, only this can serve as a guarantee of its quality.
Principle of operation of
In order for all waste to enter the collector, it is necessary to properly implement the drainage system, only this guarantees a reliable drainage. The correct system functions as follows: all wastes are moved to a special hermetic container, then they are crushed and pumped into the treatment facilities and the collector.
Important! Designing pressure sewage is a complex undertaking, so it is better to contact a specialist.
The pipe diameter for such a system is 32 millimeters, and their thickness is calculated so that the flow velocity is not more than 0.7 meters per second. When this speed is reached, the sewage pipe self-cleaning system comes into play.
Advantages of pressure sewage:
- The volume of excavation works is less;
- Due to the use of less material at longer distances, the cost becomes lower;
- Reduces installation time;
- The service life of such a system is 50 years.
