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Thread: Skimmer leak on newly painted pool

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    Join Date
    May 2014
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    Ann Arbor Michigan
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    Skimmer leak on newly painted pool

    Hello Everyone, I the new guy to the group.

    So...after many years of patching and grinding, I finally got my pool painted. I filled it with water, started to try to get things in order chemical wise...and I noticed that I was losing two inches of water within a matter of a few hrs. So...I filled it up again to the water line and it fell again.

    I plugged up the two return lines trying to isolate the skimmer. but it did not seem to work...I didnt tighten the plugs enough and the water leaked just below the return lines.

    I now put more water in the pool and really tightened the plugs. Signs point to there being a leak in the skimmer line.

    Looking at the position of the skimmer in relationship to the grass, do you good folks think this would be easy to get to?



    Pool:
    Fiberglass side
    Concrete bottom
    Painted with epoxy paint
    Haward EC75 DE filter
    Haward Super pump
    25000 Gallons

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    Re: Skimmer leak on newly painted pool

    Welcome to TFP!!!

    So you have a concrete painted pool that leaks water.

    Your skimmer is above your returns so if the skimmer has a leak allowing the water to leak until it stops should tell you that it is or is not the skimmer.

    Most leaks are not in the pipes they are in the skimmer or or in the space between the skimmer or return lines and the concrete wall of the pool.

    I would fill the pool and let it drain until it stops. if it stops just below the skimmer then your leak is around the skimmer. If it stops below the returns then it in the returns if it keeps going then its below that.

    If you think its the skimmer fill the pool and turn on the pump -- if there is a leak in the plumbing from the pool to the pump then there should be some air bubbles coming into the pump basket that you can see. If no bubble then your leak is probably around the skimmer or in the skimmer itself -- probably around the skimmer.

    You can also isolate the leak using food coloring -- while the pool is full and the pump is not running-- place a dropper of food coloring near the returns and the skimmer see what happens. There are several youtube videos on this.

    I would not start digging up the yard until after I tried all of the above -- and maybe a leak detection service also. Most pool leaks are not plumbing leaks.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

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    Re: Skimmer leak on newly painted pool

    Quote Originally Posted by gwegan View Post
    Welcome to TFP!!!

    So you have a concrete painted pool that leaks water.


    I would fill the pool and let it drain until it stops. if it stops just below the skimmer then your leak is around the skimmer. If it stops below the returns then it in the returns if it keeps going then its below that.

    If you think its the skimmer fill the pool and turn on the pump -- if there is a leak in the plumbing from the pool to the pump then there should be some air bubbles coming into the pump basket that you can see. If no bubble then your leak is probably around the skimmer or in the skimmer itself -- probably around the skimmer.

    .
    Did you mean that If there are no bubbles then my leak is probably around the Return?
    When the pool is full, there are ZERO bubbles in the basket.

    However...I did have about an `1/8 inch gap between one of the returns and the back of the fiberglass walls. I just fixed this with some atlas putty...I will see if that works. Thank you for your response

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    Re: Skimmer leak on newly painted pool

    Zero bubble probably means there is no leak on the suction side of the plumbing. The leak could be in the skimmer or in the pool between the pool wall and the skimmer. That and return leaks you can find by either allowing a drain down or the food coloring test.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

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    Re: Skimmer leak on newly painted pool

    Quote Originally Posted by gwegan View Post
    Zero bubble probably means there is no leak on the suction side of the plumbing. The leak could be in the skimmer or in the pool between the pool wall and the skimmer. That and return leaks you can find by either allowing a drain down or the food coloring test.
    Well...There is not a leak in the skimmer itself. I plugged it up last night and it held water. It did fall almost below the return. One of the returns...I have noticed...feels really rough and "thin" if that makes any sense. I am filling the pool again and running it. I am having my son monitor how quickly the water drops with the pump running. Also...If it is the return that I am thinking about...it is going to be a bear to fix. Does anyone know of a "sleeve" so to speak to get me through the summer.
    Last edited by Magus; 07-28-2015 at 07:14 AM. Reason: Update

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    Re: Skimmer leak on newly painted pool

    No air coming in from the skimmer side. No leaks in the skimmer itself...Will have to check how much water I lose today
    Attachment 40774

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    Re: Skimmer leak on newly painted pool

    Pool before painting and after patching/caulking
    Attachment 40777

    40 year old pool brought back to life...I think...
    Attachment 40776

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    Re: Skimmer leak on newly painted pool

    Well...There are some things I have eliminated from the leak equation.
    1. it is not the skimmer box
    2. it is not the skimmer line.
    3. it is not the shell of the pool
    4. it is not the light fixture

    5. it is the return lines.

    Now...here is the issue:
    The pool pump and filter are located in the basement.
    When they installed the pool, they had two returns.
    I am "assuming" the order of the pipes from the back of the fiberglass wall ...wall Fitting, maybe 6 inches of straight 1 1/2 inch pvc, a 90 pointing down, Going down about 5-6 feet into the ground, then connecting with a T at some point to join them.

    I think they are joined because there is one pipe going out of the basement and two return lines...and if I put my hand over one, the flow increases on the other.

    I can either try to
    1. Use fix a leak
    2. dig an unknown depth to try and find the leak...or...the leak can be right at the fitting.

    What are your thoughts?

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