If you have noticed that the water level inside of your above ground pool is slowly going down, a leak is likely present. The most obvious reason for the leak is probably due to a torn pool liner. The liner is flexible and constructed of vinyl, which is susceptible to tears. Visually inspect the pool to determine where the water is leaking from and use a patch kit to repair the torn liner.
Consider All Options
Although you may assume that the liner is the cause of the problem, you should check other components first, to ensure that they are not contributing to the leak. If you eliminate the other possibilities, you can work on finding the exact portion of the vinyl that is torn. Since the very bottom of the pool could be where there is a tear in the liner, you will need to drain the pool in entirety to patch it.
Inspect the pump and filtration device to ensure that they are not clogged. Clogged lines could cause water to back up, resulting in a loss of water inside of the pool. Walk around the perimeter of the pool to determine if there are any portions of the ground that are wet.
If you notice puddling or a soft spot on the ground, you are near the area that needs to be repaired. The individual light units that are located along the interior wall of the pool could be loose, resulting in seepage through a gap. Inspect light covers for cracks, since this type of damage could also constitute a leak.
Check The Liner
If you still haven't located the problem, begin inspecting the liner. Start toward the top of the pool and work your way downward. Look for tears around hardware and next to electrical components, that are used to filter the pool water. Inspect both the interior wall and bottom of the pool. When you locate a tear, you may notice that the liner is slightly wrinkled and that it has a squishy texture when you apply weight against it.
Drain the pool until the water falls below the area where the tear is located. Use a lint-free cloth to dry the torn vinyl. When you purchased your pool, you probably received a patch kit. If you cannot find this kit or if you previously used it, purchase a vinyl patch kit from a pool supply retailer.
Adhere the patch against the tear and use the vinyl glue to seal the edges of the patch. After the glue dries, refill your pool. For extensive damage to your pool or repairs that seem to difficult for you to handle on your own, contact a pool contractor to assist with resolving them.
For more information about pool repair, contact a service like Heritage Pool Plastering, Inc.