How to Lay and Inspect the Drainage Pipe

The purpose of a drainage pipe is to remove wastes from facilities going to the sewer or septic tank. It is placed in the middle of inspection chambers in sewer systems in homes. The system should be self-cleaning without the risk of blockage. To accomplish this, it must have the proper gradients. UPVC or plastic pipes are commonly used in these systems. After laying the drainage pipe, it is vital to check it thoroughly before using this. It needs to be done amongst the inspection chambers.

A drainage pipe needs to be placed in trenches. The typical depth is between three hundred up to five hundred millimeters. The pipe should be enclosed in concrete when the system passes under walkways, driveways or a parking area. A drainage pipe needs to be placed in a straight line. It needs to be connected with outlets going uphill or headed toward the building.

An even or solid ground is needed to ensure the correct placement of the system. When joining the male and female outlets a good bonding agent for the joints is needed. You need to make to follow the manufacturer’s recommendation in using the adhesive. The drainage pipe needs to go into complete wall thickness when joining it to the inspection chambers. Debris should be kept off the drainage pipe.

When laying, the drainage pipe should be carefully inspected. This is to make sure that these are not punctured. To test the drainage pipe, water is dispensed into the header tank. It should elapse three hours to keep it full. This would let absorption to take effect. After thirty minutes has passed you need to look for the tank’s water level. The header tank’s water level should not fall. The test is acceptable if the level has fallen by three millimeters. Give at least an hour in between and check again the levels.

If the drainage pipes that were tested have failed, you need to check the leakage point. Keep in mind that the tests are done on pipes placed in trenches that are uncovered. It should be noted that the point of leakage is secured. The test is done through the use of a concrete that is strong enclosed with fine masses. It should be completed with at least a cover of a hundred fifty millimeters. Tests are repeated and confirmed. When it has passed the test, the trenches are then filled.