On my pool i have part of it under ground. I have a corrugated pipe that runs half way around the pool under ground for drainage.
While filling i decided to cut the grass. When i got to the backside of the pool where the drain is i had water running out of the pipe.
Noticed that the filter was on and water was coming out the drain hose. The water might of came from there and not the liner.
But 20 minutes later it was still draining and the water would of went in the last 5 feet of the tail.
I filled the pool up and plug the hose and marked the water level on the skimmer so i can see if it leaking.
The pool was about a foot below the skimmer when i started filling so i know if i have a leak it will be in the side.
What would be the easiest way to locate the leak if i can not visually see it?