How To Find A Water Leak In A Pool Liner. Now, have a look over the following instructions: How to confirm your pool has a leak # mark the water line at the skimmer with a piece of duct tape or washable marker.
Fill a bucket with pool water and mark the level. This test will rule out evaporation as a possible source of lost water. Use a grease pencil or piece of tape to mark the water level at a point about one inch above the waterline in the bucket and in the pool.
If you find water near your pool’s equipment pad, it is important to inspect the area to verify that the water buildup is due to a leak.
If you don't see anything you could try adding about a 1/2 of water and see if you can find where it is leaking while up on blocks. There are two main ways to detect a pool leak. It’s an unavoidable truth with most things in life. Leave the bucket alone for anywhere between 3 to 7 days and do not top off the water, checking regularly to look for a change.