I'm still having trouble getting everything figured out with my pool builder. We have had a leak that I think is in the lines and he is saying it can't be because the pressure would drop immediately after pressure testing. This is how they tested, every return in my pool was plugged with pvc and in my skimmer one has pvc and one had the line he hooked the pressure hose to. Nothing is plugged at my pump or those lines. We are using my pressure gauge on the filter to watch if it moves. We are leaving it over night to see. Can you guys tell me if I do have a leak in a pipe what I should see with the pressure? It's about 18psi right now on my gauge at the pump.
Here's what I have been having going on, our liner kept floating away from the edge, we had a wet winter, so thought that was keeping the ground saturated, we also have a lot of clay. He decided to install a sump pump to pull the water away from the pool and pump it away. He installed that and it immediately started pumping water, and my liner got tight again. Even when we are very dry it still goes off every 2 1/2 hours pumping water, the water is really clear, so I tested it with my kit and it shows that it has chlorine in it. This is the third time he has pressure tested the lines, but the first time he left it over night. The time before he just plugged up all of the returns with the pvc, but no pressure on it, and my sump pump did not go off for 48 hours. I took the plugs out and the pump immediately started filling again. So that makes me think it's in the lines, but he said the pressure would drop immediately.
So I'm just looking for your opinion on how you guys test it and if this is correct I would see it immediately. He also said if there were a leak we would hear it just standing on the deck of the pool.
Thanks for any help.