Possible broken plumbing

[stew930]

Loosing 1-2 inches of water a day whether the pump is on or not. I am assuming it is a break in the plumbing. Could the pool not have been closed properly last fall?

I noticed something wrong when vacuuming and hardly any suction then last week I got in the pool and noticed the water level was a few inches below normal. Filled it to the line and the next day it was down a few inches. Plugged the skimmer with the winter plug, filled the pool to the line and left the pump off over night. The next day the water level dropped 1-2 inches.

I noticed when shut the pump and closed both valves (Skimmer and Main) to keep pressure in the lines I can hear water running out of the line.

 

[JVTrain]

You can verify where it is if you believe it's in the lines (other than the main drain) by plugging the returns and the skimmer outlet hole manually with expansion or screw in plugs. I'd plug them all (isolate main drain) when you're not needing to circulate and monitor the water level and work your way through each line.

Can you be more specific about where you're hearing water running with pump off? Just water draining sounds at the equipment pad?

 

[stew930]

I never thought about plugging the outlet hole but I will do that tonight and see what happens.

When I turn the pump off and turn the skimmer and main valves off I hear water running out of the lines at the pad.