Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: Wouldn't my pool empty if there is a leak in the deep end ?

  1. Back To Top    #1

    Join Date
    May 2017
    Location
    Schwenksville
    Posts
    3

    Wouldn't my pool empty if there is a leak in the deep end ?

    18x36 inground vinyl
    8ft deep end / 3.5ft shallow end

    I have a pool person who has been trying to find a leak. He is now convinced that the leak is at the bottom of the pool.
    I'm having a difficult time with that idea.

    The water level over many months has not went lower than about a 1/2 inch above the bottom of the skimmer.
    Wouldn't the pool drain to the point of the leak over many months ?

    There was a leak that he found that was in the shallow end and was patched. I'm still not 100% if that was actually a leak because again wouldn't it drain to the leak level ?

    Thanks

  2. Back To Top    #2
    Mod Squad JVTrain's Avatar
    Join Date
    Feb 2014
    Location
    Central Minnesota
    Posts
    5,080

    Re: Wouldn't my pool empty if there is a leak in the deep end ?

    It would indeed drain to the level of the leak if there were no water added from rain, manually, auto-fill etc. If the water table were high, it may take a long time to drain all the way to a low leak, but you'd likely see problems with liner float/wrinkles before that happened.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

  3. Back To Top    #3

    In the Industry
    Pool Clown's Avatar
    Join Date
    Sep 2008
    Location
    Silicon Valley, CA
    Posts
    1,764

    Re: Wouldn't my pool empty if there is a leak in the deep end ?

    Quote Originally Posted by maestro7879 View Post
    The water level over many months has not went lower than about a 1/2 inch above the bottom of the skimmer.
    The bottom of the skimmer inlet (throat)? Or the bottom of the skimmer proper?

    I would look at the connection between the liner and the skimmer for a leak if it were 1/2" above the bottom of the skimmer inlet.
    Factory Warranty Station for:
    Jandy/Zodiac, Pentair, Sta-Rite, Raypak (Rheem, Rudd), Polaris,
    and Paramount pool cleaning systems.

  4. Back To Top    #4

    Join Date
    May 2017
    Location
    Schwenksville
    Posts
    3

    Re: Wouldn't my pool empty if there is a leak in the deep end ?

    The water is 1/2" from the bottom of the skimmer throat. The skimmer gasket was replaced and silicon was used.
    I've watched the pool guy test it with dye multiple times and it doesn't appear to be leaking.

    He's still convinced the bottom of the deep end is leaking.
    18x36 vinyl inground
    8ft deep end / 3.5ft shallow end

  5. Back To Top    #5
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    20,312

    Re: Wouldn't my pool empty if there is a leak in the deep end ?

    Water seeks its own level. Stop.

    If the leak stops at the same place consistently, the leak is at that level. It doesn't have to be at the pool, either. It could be a lousy plumbing joint closer to the pump but at that same level. Do you have a built-in overflow? Maybe the stand pipe is cracked or broken?

    overflow.jpg

    I'd start by looking all around inside the pool at that same level, especially near seams and where the steps meet (if any) Then look at the skimmer. See any cracks? Look for especially lush grass or weeds near any return plumbing. Lastly, dig around the pipes near the pad. Is the ground wet?
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  6. Back To Top    #6

    In the Industry

    Join Date
    Nov 2011
    Location
    Moberly,MO
    Posts
    1,025

    Re: Wouldn't my pool empty if there is a leak in the deep end ?

    When water inside the pool equalizes with ground water it will stop leaking. It does not matter where the water is leaking from. If there is a drain field under the pool that can change the amount of water that you can lose.
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

  7. Back To Top    #7

    In the Industry
    Pool Clown's Avatar
    Join Date
    Sep 2008
    Location
    Silicon Valley, CA
    Posts
    1,764

    Re: Wouldn't my pool empty if there is a leak in the deep end ?

    ESPECIALLY if the gasket was changed, inspect the throat area again. If the water level is near the skimmer throat, go ahead and fill the pool back up. Then take some dye, test solution works well, just don't use it anymore for water testing after, and see if the replaced gasket joint is leaking or drawing any of the dye.
    Factory Warranty Station for:
    Jandy/Zodiac, Pentair, Sta-Rite, Raypak (Rheem, Rudd), Polaris,
    and Paramount pool cleaning systems.

  8. Back To Top    #8

    Re: Wouldn't my pool empty if there is a leak in the deep end ?

    We have same size/kind of pool. From experience, if there's a leak in the deep end it will continuously drop till it gets to that point and there will be no doubt. Pretty quickly to, when we finally found it there a slice like spot no more than an inch long! Hopefully you are getting charged for the searching. Our pool can lose half an inch to evaporation in a day.


  9. Back To Top    #9

    In the Industry

    Join Date
    Nov 2011
    Location
    Moberly,MO
    Posts
    1,025

    Re: Wouldn't my pool empty if there is a leak in the deep end ?

    Just replaced a liner on Saturday the hole in the vinyl was a foot below the water line. With no way for water to get away from the pool and a hydrostatic relief valve water was returning via the valve and the pool did not leak down below the hole.
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

Posting Permissions

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