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.