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Thread: How many gallons is my pool?

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    orthofish's Avatar
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    How many gallons is my pool?

    According to the PC my pool is 21,800G. I used 15x37x5.2. The PB says it is 19,000G
    according to his sheet of all the pools they sell. I hope to have equipment hooked up this week so I can start adding chemicals. It is a green monster right now Which number should I use? In reading, it seems I should be pretty accurate when adding chems.
    I've updated my sig to split the difference right now.
    Lynn

    16x38 FG, 20,400G, 1HP/2sp Tristar pump, Hayward 425sq ft cart. filter, Pro Logic4, SWCG, 3 returns, 2 main drains, 1 skimmer, 4 Pentair deck jets, Hayward Phantom pressure cleaner/booster pump, TF-100 of course :-)orthofish-s-pool-build-finally-t13179.html

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    Re: How many gallons is my pool?

    Call it 20K gal and go have a cool one! It will be close enough for government work, trust me!

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    duraleigh's Avatar
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    Re: How many gallons is my pool?

    Hi, Lynn,

    I'll bet your close with 20k. If you feel the need to be more precise, 5.2 average depth seems a little agressive but I don't know the config of your pool.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    orthofish's Avatar
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    Re: How many gallons is my pool?

    Thanks guys.
    The configuration is in my pool build, to which I will add some pics tonight I hope

    Guess I need to quit being so an#l
    Lynn

    16x38 FG, 20,400G, 1HP/2sp Tristar pump, Hayward 425sq ft cart. filter, Pro Logic4, SWCG, 3 returns, 2 main drains, 1 skimmer, 4 Pentair deck jets, Hayward Phantom pressure cleaner/booster pump, TF-100 of course :-)orthofish-s-pool-build-finally-t13179.html

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    Re: How many gallons is my pool?

    1) Pick a number.
    2) Use it for a while. Notice if you tend to overshoot or undershoot your chems.
    3) If you overshoot, go smaller; if you undershoot, go bigger.
    4) Repeat until you don't over- or undershoot.
    The calculations are an initial educated guess, that's all. I went three rounds of this process before I got a number that works pretty well.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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