The builders bible for developing a sewer system
The builders bible for developing a sewer system
Drainage pipes are often used in systems which carry the waste products from utilities to the septic tank. In sewer systems from houses, pipes are laid in between inspection chambers. This system should be capable of self-cleaning without causing a blockage. The use of correct gradients is a must here. Normally UPVC pipework is employed in the sewer system. However testing is very important before the system can start functioning. The tests must be conducted in between the inspection chambers to allow each part of the system to be thoroughly checked.
Drainage pipes are positioned in trenches which have been pre-dug. Trench depth has to be between 300 to 500 millimeters. Drainage lines running under a walkway, driveway or parking area are installed with a concrete casing. When commencing the work, excavate to the required levels. Carry out grading towards the tanks or sewers to ensure water flow. Maintain a slope of one in four for the excavated channels. The trench bottoms are well compacted and rammed. To fix the levels in these bottoms, one can use pegs.
It is necessary to lay the drainage pipes in a straight line without curves or kinks. The pipes should be connected with sockets leading uphill or in the direction of the building. A firm and uniform bed for the pipes has to be ensured. Male and female sockets should be connected using good quality adhesive. Follow the manufacturer’s instructions while using the adhesive. The pipe should be thickest in the area where it is being connected to the inspection chambers. Pipes must be free of litter and internal obstructions.
When laying the drainpipes, they should be thoroughly inspected. This is to make sure that the pipes are free of punctures. The recesses of the socket should be made at the deepest point. The hooks must be as stunted and small as possible. The inlet and outlet points must be evened out and marked appropriately. Once all joints are done, wrap the system and cover with soil. Next, it should be connected with the sewer or septic tank. The drainage is finally completed by connecting the utilities to the tank.