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Thread: Leak in fiberglass pool

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    Leak in fiberglass pool

    Over two weeks in to June and we can't swim because of a leak in the pool. I can't seem to attach a photo but it has leaked below the skimmer, returns, and light niches over the past 7-10 days. The water level has remained mostly stable over the past week at about 18" below the top of the pool. Besides a leak in the shell itself (which I can't see), the only thing left is my main drain and/or plumbing from it to the filter.

    While 18" isn't too deep of a hole to dig, can anyone give me some input on other possible ways to detect the leak, without calling a leak expert? At this point I can only assume the leak is in the plumbing (flex tubing, I think) from the main drain. I'll dig a long hole to find the leak in the tubing as long as it's less than two feet deep
    Matt

    10,000g "Antigua" (kidney shape) fiberglass IG pool, 1 hp Hayward Super Pump, Hayward 1200 Cart filter, 130K BTU heater, Savi Melody lights.

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    Texas Splash's Avatar
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    Re: Leak in fiberglass pool

    Sorry to hear about that matpat. Have you seen this page: Pool School - Leak Detection

    You may receive some other advise from members how had to do some creative leak research. There are lots of "leak" results in the "Search" feature. I wish you luck!

    - - - Updated - - -

    Also, if you continue to have problems trying to post a pic, let us know. Most of us link pics from Photobucket by copying & pasting the IMG code back to the post.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    Mod Squad pooldv's Avatar
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    Re: Leak in fiberglass pool

    Bummer! Leaks and digging are not fun. The only thing I know about leaks is that there is an article in Pool School. Hope it helps.
    Pool School - Leak Detection
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    Re: Leak in fiberglass pool

    Thanks to both of you for responding. I started at the Pool School - Leak detection article and have read about every post on leaks I can find. I have some pics of the plumbing I took when the pool was installed. I just don't want to have to dig if I don't have too, lol.
    Matt

    10,000g "Antigua" (kidney shape) fiberglass IG pool, 1 hp Hayward Super Pump, Hayward 1200 Cart filter, 130K BTU heater, Savi Melody lights.

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    Texas Splash's Avatar
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    Re: Leak in fiberglass pool

    Do you have a way to separate flow (shut-off) the main drain versus your skimmer? If it turned-out to be your main drain, shoot, maybe just close it off. There are bigger pools than yours without a main drain - mine (FB) for example! You can still manage your water chemistry just fine with out the main drain "if" that's what it turned-out to be. Just a thought.

    Otherwise, lately I've had no problems employing the help of my teenage boys to put their strong backs to use for a "unique" job opportunity just like this one - digging. I save some energy, they earn a few bucks .. win-win.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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  6. Back To Top    #6

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    Re: Leak in fiberglass pool

    Unfortunately, no way to shut off the main drain. It seems like to me that it would still leak unless I removed the cover & plugged the hole. I'm not ready to get in the pool with 70* dirty water either!
    Matt

    10,000g "Antigua" (kidney shape) fiberglass IG pool, 1 hp Hayward Super Pump, Hayward 1200 Cart filter, 130K BTU heater, Savi Melody lights.

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    Texas Splash's Avatar
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    Re: Leak in fiberglass pool

    Again, that's what teenagers are for.

    Okay then, good luck and perhaps you'll receive some more comments to this post tis afternoon to assist.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  8. Back To Top    #8

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    Re: Leak in fiberglass pool

    I've been semi-lucky so far. I guesstimated where to start digging and after about two shovelfuls of sand I found the main drain line. I was about a foot down and a foot under the concrete when it started pouring rain so I stopped. Hopefully I can find the leak without going too far under the concrete. If not, I'll brace the concrete to be safe. I can't believe I hit the spot on the first try! No teenagers here to help but my 9 & 12 y/o can help later 😀
    Matt

    10,000g "Antigua" (kidney shape) fiberglass IG pool, 1 hp Hayward Super Pump, Hayward 1200 Cart filter, 130K BTU heater, Savi Melody lights.

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