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

Thread: Help!!......Where is the leak!?!?

  1. Back To Top    #1

    Join Date
    Apr 2016
    Location
    Spring, TX
    Posts
    8

    Help!!......Where is the leak!?!?

    I have a leak that I can't figure out.

    Spa water level dropping at around 2" in 24 hrs.
    Size of spa is approx. 8 ft. dia. and 4 ft. deep.

    Pump is off and multi-port valve is in "filter" position.
    I have replaced the spider gasket but didn't help...... much, as the problem isn't completely solved.
    Before I replaced it, I could place my ear against the pipe leading to the heater and hear the water "flowing", "trickling", or something like that.
    oh I also replaced the check valve too.

    I did a little test, marking the level of the pool and the level of the spa.
    the spa dropped in level but the pool did not so something is wrong in the spa.

    Whatcha think?
    Pool/Spa: in-ground
    Capacity: 18,000 gl.
    Filltration: DE, 60 gl. vessel
    Cleaner: Polaris 380
    Credo: "Don't text and drive...........that's how accidents happen"

  2. Back To Top    #2
    JayBauman's Avatar
    Join Date
    Sep 2014
    Location
    Katy, TX
    Posts
    617

    Re: Help!!......Where is the leak!?!?

    Have you been able to eliminate check valves as the source of your leakage? Is your spa elevated in relation to the pool?
    23' x 37' IG 18.5k gallon SWG w/ raised spa, Build Thread -->Here
    Wet Edge® Pearl Matrix®, Hayward® SwimClear™ 525 ft², Hayward® Goldline Controls® PS-8
    4x Hayward® TriStar™ pumps, Paramount PCC2000® ICS, TF-100 w/Speedstir

  3. Back To Top    #3
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Help!!......Where is the leak!?!?

    Do the spa and the pool share the same water?

    When the spa goes down, does the pool level rise? Consider the relative surface area of each and do the math. In my pool, 2" in the spa is only about 1/4" in the pool. I know, because my spa is at the same elevation as my pool. When the pump is off, it siphons down and the two are at the same level in the morning. Once it's pumping, the spa raises far higher than the middle of the pool skimmer and starts spilling and the pool level drops.

    If the pool is elevated, then it's most likely a bad check valve. Scroll waaaay down on Pool School - Visual Encyclopedia of Pool Equipment and see if you have anything in your plumbing that resembles the images of check valves. Some are rebuildable.
    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!

  4. Back To Top    #4

    Join Date
    Apr 2016
    Location
    Spring, TX
    Posts
    8

    Re: Help!!......Where is the leak!?!?

    Quote Originally Posted by JayBauman View Post
    Have you been able to eliminate check valves as the source of your leakage? Is your spa elevated in relation to the pool?
    yes, it is elevated....about 1 ft. or so.
    my pool/spa is 12 years old.
    I presumed that the original check valve was bad and wasn't sealing, so I replaced it with a new one. Didn't help.

    - - - Updated - - -

    Quote Originally Posted by Richard320 View Post
    Do the spa and the pool share the same water?
    Yes.
    Pool/Spa: in-ground
    Capacity: 18,000 gl.
    Filltration: DE, 60 gl. vessel
    Cleaner: Polaris 380
    Credo: "Don't text and drive...........that's how accidents happen"

  5. Back To Top    #5
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Help!!......Where is the leak!?!?

    Are there check valves on both sides of the spa plumbing? If your drains are teed at a three way valve, if that valve leaks, it can still siphon down. Again: When the spa goes down, does the pool level rise? That is a key point. That will tell you whether the water is leaking into the pool or into the ground somewhere.
    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
    JayBauman's Avatar
    Join Date
    Sep 2014
    Location
    Katy, TX
    Posts
    617

    Re: Help!!......Where is the leak!?!?

    Quote Originally Posted by fill-it-with-dirt View Post
    yes, it is elevated....about 1 ft. or so.
    my pool/spa is 12 years old.
    I presumed that the original check valve was bad and wasn't sealing, so I replaced it with a new one. Didn't help.
    I can imagine that the missing 2" of spa water might not be very easy to see in terms of rising pool level, so maybe you need a bit more time for the leak. My spa is elevated by 18"....when my check valves have failed, water level in spa drops to equilibrate with water level in pool. I am not able to see this "extra" water in the pool.

    Are you sure you only have 1 check valve?

    Can you let the spa drop down to its final resting level? This might give you a clue as to what could be leaking.
    23' x 37' IG 18.5k gallon SWG w/ raised spa, Build Thread -->Here
    Wet Edge® Pearl Matrix®, Hayward® SwimClear™ 525 ft², Hayward® Goldline Controls® PS-8
    4x Hayward® TriStar™ pumps, Paramount PCC2000® ICS, TF-100 w/Speedstir

  7. Back To Top    #7

    Join Date
    Apr 2016
    Location
    Spring, TX
    Posts
    8

    Re: Help!!......Where is the leak!?!?

    Quote Originally Posted by Richard320 View Post
    Are there check valves on both sides of the spa plumbing? If your drains are teed at a three way valve, if that valve leaks, it can still siphon down. Again: When the spa goes down, does the pool level rise? That is a key point. That will tell you whether the water is leaking into the pool or into the ground somewhere.
    ok..........keeping a close eye on this,
    the spa is going down and the pool level is rising ever so slightly, so it seems like it could be a valve, right?
    Pool/Spa: in-ground
    Capacity: 18,000 gl.
    Filltration: DE, 60 gl. vessel
    Cleaner: Polaris 380
    Credo: "Don't text and drive...........that's how accidents happen"

  8. Back To Top    #8
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Help!!......Where is the leak!?!?

    Quote Originally Posted by fill-it-with-dirt View Post
    ok..........keeping a close eye on this,
    the spa is going down and the pool level is rising ever so slightly, so it seems like it could be a valve, right?
    Yep. Somewhere the two bodies of water meet and that's the path the water takes. If you have the three-way valves turned to isolate the spa, it should stop leaking down. If it persists, then one of the 3-way valves leak. If it stops, then one of the check valves is leaking.
    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!

  9. Back To Top    #9
    DontFillitin's Avatar
    Join Date
    May 2015
    Location
    Birmingham/AL
    Posts
    377

    Re: Help!!......Where is the leak!?!?

    I have nothing to add here other than "told ya so". These fine people will get you worked out!
    25,000 gallon IG with vinyl liner. Not sure how old it is. Sand filter, not sure what brand/size, Hayward Super Pump c48k2n143b1. I have a Polaris 180 cleaner on it's last wheel (haha). I'm still not sure about water restrictions, but haven't gotten any hate mail about the amt I used last summer. I absolutely LOVE my TF-100 test kit.

Posting Permissions

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