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Thread: Where's my water going?

  1. Back To Top    #1

    Join Date
    Jul 2016
    Location
    Florida
    Posts
    34

    Where's my water going?

    Okay. I have been having an on-going leak saga for multiple months now. I finally gave up doing my own searching and hired a leakfinder guy to come in. He claimed to have found and fixed 4 leaks and told me that my skimmer line also had a slight leak in it at the entrance from the skimmer but that he wasn't able to fully fix it. My hands were a bit smaller than his so I was able to work in epoxy into the area he showed me. I then hooked up a section of vacuum hose to the skimmer pipe, closed the valve at the pump and left a head of a few feet of water in the hose for a day with minimal loss. So I think the skimmer one is resolved. Also, I have no overnight water loss.

    However, I'm still losing water inconsistently at about 1/4" a day in the pool itself. The reason I say inconsistently is that it doesn't appear to happen overnight when the pump is off and it also doesn't appear to be happening when I have my solar panels off. (Before the other recent repairs, I was losing water overnight)

    The thing I'd like input on are my solar panels. I manually kept the panels off and there was no water loss so I'm wondering if I have a problem there. I have done some experimenting and have measured that when the panels come on, my water level in the pool drops by about 4-5mm. I have 8 panels and a long pipe run up 2 stories, so I'm not surprised for it to drop that much. The other day when I manually turned them off, after an hour the water had drained itself back into the pool and the level rose by 4-5mm (what I would have hoped for them to do). However, yesterday, when I flipped them off it did not go back into the pool (what I'm assuming is happening most days). And when they went back on today the water dropped again by another 4-5mm (indicating that those lines needed to be filled again and weren't still holding yesterday's water). Any thoughts on where the water may be going? I have looked up at my roof and nothing appears wet. The ground in the area of the run of pipe to the panels also appears to be dry. Has anyone experienced this before? Is there anything else I should be looking for?

    Going crazy -
    Dennis
    St, Augustine, FL / Covered Screen Enclosure
    1982 IG plaster/pebble - 18K gallon city water, Hayward C900 Cartridge Filter, Single Speed Pump 1.5hp
    Testing with TFT-100, Treated with Liquid Chlorine, Muriatic Acid, and Baking Soda

  2. Back To Top    #2

    Join Date
    Jan 2017
    Location
    Orlando/FL
    Posts
    124

    Re: Where's my water going?

    If there is a check valve in the piping to solar panels (to prevent drain back) it may be sticking - sometimes keeping the panels full and other times letting them drain back into pool. At least that would explain random pool level fluctuation.
    20K gal In-ground pool with raised Spa overflowing into pool; two Jandy Sheer Descent waterfalls; Pentair IntelliTouch i7+3, IntelliChlor, IntelliPH, 3 SAM/SAL lights, Pentair FNS60Plus filter, two 1.0 HP WhiperFlow pumps, Jandy/Compool auto-valves, RayPak Heatpump, RayPak 406A LP spa heater, Polaris 360 PS Cleaner. Patio and deck lighting by Volt; Volt 600W landscaping transformer; Webber grilling station

  3. Back To Top    #3

    Join Date
    Jul 2016
    Location
    Florida
    Posts
    34

    Re: Where's my water going?

    Thanks. Check valve is only on the return portion in a vertical run from the roof heaters (keeping flow from going backwards up through the panels) so I don't think that's it. I do have a weird 3/4" drain line that I'm wondering if it could be wreaking havoc in some fashion (even though it ties back in further down the system). I know its there so the panels drain back into the pool once the system is off. Maybe I can put a schematic together to see if anyone thinks it's odd. I guess it's time to start digging some dirt to see if it's buried in the pipe run from the pump to the heaters.
    St, Augustine, FL / Covered Screen Enclosure
    1982 IG plaster/pebble - 18K gallon city water, Hayward C900 Cartridge Filter, Single Speed Pump 1.5hp
    Testing with TFT-100, Treated with Liquid Chlorine, Muriatic Acid, and Baking Soda

  4. Back To Top    #4

    TFP Guide


    Join Date
    Feb 2015
    Location
    Chandler AZ
    Posts
    1,061

    Re: Where's my water going?

    A random 1/4" a day could be so to evaporation. The amount can depend on temp, humidity, wind, etc.

    Here in the desert southwest, I lose 1/4" - 1/2" (or more) everyday do to evaporation.
    Gene
    ​12,300 gal IG play pool - Pebbletec - built 10/1999 || Hayward S360SX 36" sand filter || Hayward Ecostar SP3400 VSP || A&A In-Floor cleaning system || Quik Water Leveler || Quik Dek-clor (limited use)
    TF-100 testkit / Speedstir - A good test kit is not an expense, it's an investment

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