How To Find A Leak In The Bottom Of A Pool Liner. Some of these washed away areas are visible and will let you know where the leak is in the liner. Time to get in, but first clean the pool before you consider getting in the pool to find a leak, clean and vacuum it.
Wait for the water to be completely still. (if there isn't a leak, just go for a swim!) In maximum cases, the leaked water travels through the earth’s bottom and washes the earth away.
Fix this hole with a patch.
Wait for the water to be completely still. Sometimes there is a microscopic hole in the bottom of your pool, near your pool’s wall, or who knows. Ensure the pool is full (so the leak's not above the water level). This might take time, since the dye will not immediately move towards the hole or tear in your pool.