Maybe some of you have experienced this and can help me out. The water level in our pool was dropping this summer (about 2.5 inches every 4 days) so i called someone to come out and take a look. They tested the liner and found two small holes and patched it up. Pressure tested the lines and they said everything was fine. Only issue they could come up with was that the waste pipe was filled with water. They said there was probably a bad washer in the diverter valve causing water to waste while the pump is on. They suggested i could either get a new valve or put a double union ball valve on the waste pipe to prevent the leak. I choose the latter since it was quite a bit less money.
After installing the ball valve we still have a leak.
One thing I noticed and told the repair guy was that when the pool runs my sump pump in the house gets water. I turn off the pump and after about an hour the sump pump in the house is dry. the pump room is about 5 ft away from the house so i figured there was a cracked line off the pressure side of the pump leaking water into the drain tiles around the house. This can't be possible if the lines held pressure right?
Just wondering others ways the system could be leaking if the vinyl liner was fixed and the lines held pressure. Thanks for any help.