Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: Water Leak

  1. Back To Top    #1

    Water Leak

    I have an above ground pool that is 16 x 20 with a bottom drain. It started leaking two summers ago about an inch each day. I have never found any wet spots in the yard around the pool. Ive tried finding the location of the leak without any success. When I opened the pool this spring it was completed drained which leads me to believe its in the drain somewhere. I refilled the pool and left the bottom drain closed. This still didnt solve the problem. In fact, once I opened the bottom drain it seemed to lose less water than when it was closed. It iss still losing water daily. I know the water loss isnt from evaporation. Any suggestions?

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: Water Leak

    Welcome to tfp, Herr

    It is surprising that your liner is still functional since allow it to drain almost always requires replacement, unless the drain was short and the liner was almost new.

    There is a good article in pool school:, but if it leaked down to the bottom, then it is likely your leak is at that level. I would guess that it is the drain or drain line and when the pump is running the vacuum created prevents water from leaking out and when you shut it off, then the water is able to leak.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts