Underground Domestic Water Testing
Underground Domestic Water Testing
(OP)
We are using 4" glued Schedule 80 PVC pipe. We are allowed 1.89L/hr/100joints of leakage. We have 28 joints, in 560 feet of underground pipe. We are losing 4psi over a two hour period. How do we convert this PSI reading to Liters/hour?





RE: Underground Domestic Water Testing
Steve Wagner
RE: Underground Domestic Water Testing
Use a barrel of water to draw from using the pump. Get the main pressurized to the required testing psi (100 or 150 typically). Mark the level of the water inside the barrel using a crayon or marker.
Wait 2 hours. I assume it will lose 4 psi. Turn the pump on and draw water from the bucket. Pump the water line back up to the testing psi.
You should have pumped X number of gallons of water into the water line, so the water level in the barrel will now be below the marked level.
Take a measuring cup and count how many cups or gallons of water are needed to fill the water barrel back up to the marked level - that is how much water you lost over the 2 hr period.
RE: Underground Domestic Water Testing