Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Odd leak detection strategy??

  1. Back To Top    #1

    Join Date
    Apr 2013
    Location
    Thibodaux, LA
    Posts
    2

    Odd leak detection strategy??

    *Sigh....
    Fighting leaks. Bought my wife's grandmother's house. Pool installed in '94, she had it maintained by a pool guy, but for the few years before we bought the place, it was vacant and pool went uncared for. Last summer was our first in the house. Cleaned the pool, changed the old salt chlorinator to a Hayward SWG....all was great for a while, until the end of summer. Started leaking pretty badly. Gave up for the winter.
    Here we are again, trying to get it up and running for the summer. Without the pump running, it holds water fine. With the pump running, the water is down far enough for the skimmers to be sucking air within a few hours. So I belive I have established it to be a pressure side leak. I went through isolating each skimmer and the drain, with no change on how much water is lost. Now, I just rebuilt the top half of the multi-port valve, which was leaking. The spider gasket was almost non-existent; I never noticed a problem with it b/c there is a shut off valve added to the waste/backwash line so no water ever leaked out. Since the rebuild of the top half, I am now getting leaks from several places....where the multiport meets the filter tank is leaking in several spots, a few plumbing unions/couplers, 90s have drippy leaks...obviously all this needs to be fixed. My plan is to change the multiport and replace all the above the ground plumbing. I'm have fairly advanced DIY skills and am not concerned about handling this. What i am concerned about is doing all this work and finding out that there is a below ground leak somewhere. Which could mean breaking cement...a large investment. If we end up doing this I want to wait do the plumbing and just have the entire system redone at one time.
    So here's the plan; tell me if this makes sense.
    I want to run pvc straight up out of the pump, run it across, and connect straight into where the return goes into the ground, effectively bypassing the filter, swg, heater, everything. I know it won't filter, but if I run it like this for a couple days, and don't lose water, I'll know my leak is from the plumbing at the pad. If i still lose water, then I shut it down and try to find a pro to do some leak detection under ground.
    Opinions?
    15k gal IG gunite, Pentair Challenger High Flow 2hp, Tagelus TA-100D, AquaRite TCell9 SWG

  2. Back To Top    #2

    In the Industry

    Join Date
    Nov 2011
    Location
    Moberly,MO
    Posts
    978

    Re: Odd leak detection strategy??

    Plumb from the return on your pump across the deck to the pool. Cap returns in the pool, this eliminates the return line underground. Run your test this way then if you still think it is leaking then plumb from the pump to keep your water from being stagnant.
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

  3. Back To Top    #3
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Odd leak detection strategy??

    Welcome to TFP!!!

    Sounds like pretty straightforward investigating. I would think that losing that much water on the pad would be pretty obvious due to saturated water. But, what you propose would certainly work to eliminate the pad as the source of the leak.

    What swimcmp proposes would help keep circulation going if the leak is underground, but would not neccessarily confirm it is an underground leak ... only takes a little PVC work to try both.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  4. Back To Top    #4

    Join Date
    Apr 2013
    Location
    Thibodaux, LA
    Posts
    2

    Re: Odd leak detection strategy??

    Great, thanks! I'll try both.
    15k gal IG gunite, Pentair Challenger High Flow 2hp, Tagelus TA-100D, AquaRite TCell9 SWG

Posting Permissions

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