Drainage system design integrating self cleansing characteristics
Drainage system design integrating self cleansing characteristics
Drainage pipes are often used in systems which carry the waste products from utilities to the septic tank. Household sewer systems have pipe lines running from inspection chamber to chamber. This drainage setup must be self-cleaning, with running wastewater doing the flushing. The use of correct gradients is a must here. The most commonly used gradient in these systems is the UPVC tubing. Once laying has been carried out, it is vital to test the system fully before putting it into commission. The testing should be performed in between the inspection chambers.
It is necessary to install drainage pipes in trenches. Three hundred to five hundred millimeters is the typical depth adopted. Such sewer systems are enclosed in concrete when they pass below driveways, walkways or under a parking. To begin laying the lines, first excavate the trenches to the necessary depths. The trenches have to be sloped towards the sewer or septic tank. A one to four ratio is appropriate for the incline. The bottoms of the trenches are usually highly compressed. Pegs can be used to set accurate levels in the trench bottoms.
The drainage pipes should never be laid down haphazardly, they are to be put in a straight line. When the pipes have to be fixed on a slope or towards the building, join the sections with sockets. The ground on which the systems lies should be even and solid. The female and male sockets should be joined firmly using a strong adhesive. Read the instructions that come with the adhesive carefully and make sure that all of them are followed well. At the joint of the pipe and inspection chamber, the pipe must be fixed properly upto the full wall thickness of the chamber. Pipes must be free of litter and internal obstructions.
When laying the drainpipes, they should be thoroughly inspected. Make sure that they are not punctured at any point. Confirm the correct formation of the socket recesses in the foundation. They should also be kept as short as possible. The inspection chamber’s entry and exit points need to be graded well, in addition to being leveled. The system is then buried beneath soil when all the joints have been finished and checked. Septic tanks or sewers can now be connected. The drainage is finally completed by connecting the utilities to the tank.