Do not create drain problems with a badly designed sewer system
Do not create drain problems with a badly designed sewer system
Drain pipes carry waste effluent from your fixtures down to the sewage system. They are also used in the sewer system in our homes where they are used in between the inspection chambers. The entire sewer system must be constructed in such a way that it has the ability to self cleanse without developing blockages. Correct gradients are used for this purpose. It is UPVC tubing that is primarily employed. Once laying has been carried out, it is vital to test the system fully before putting it into commission. This should be done between the inspection chambers.
Drainage pipes need to be laid down in channels dug in the earth. The average depth for the pipes can range from 300 to 500 millimeters. When the sewer system passes under a walkway, car park area or driveway, the pipe must be enveloped in concrete to protect it. Before the construction of the drains, it is better to dig the earth to the recommended levels and check the gradients. These must be inclined towards the sewers or effluent storage tanks. The drop or slope is generally in the ratio of 1:4 to facilitate water flow in a controlled way. Ensure that the bottom of every trench is well rammed to get a uniformly compacted surface. Use pegs to set the levels in the trench bottoms.
Straight lines must be adopted for laying the drainage pipes as bends will create weaknesses and areas where blockages can occur. This should be joined with sockets leading uphill or towards the building. The ground containing the system should be compacted and consistent. Male and female sockets should be used to join the pipes using a good 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. Remove the accumulated debris from the pipes whenever possible.
The drainage pipes are carefully examined when laying. This is important to make sure that there is no leakage. Confirm the correct formation of the socket recesses in the foundation. In addition, their length should be kept to a minimum. The entry and exit points in an inspection chamber should be level and well graded. After all joining work is complete, backfill the trenches to required level. Septic tanks or sewers can now be connected. The drainage is finally completed by connecting the utilities to the tank.