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Thread: Calculating pool volume

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    Join Date
    Jun 2015
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    Eastvale, CA
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    15

    Calculating pool volume

    Hello,

    When calculating volume of a pool with an attached spa do I include the spa or keep them separate. This is for use in the Pool Calculator. I am guessing I include it considering the spillway between the spa and pool. Thanks.

    -Matt
    ~12.5K gal 10'x40' IG pool + attached spa, StoneScapes Mini-Pebble
    IntelliFlo VS (main), WhisperFlo 2HP (spa), SuperFlo 1HP (waterfalls)
    Pentair FNS Plus DE filter 60sq, EasyTouch w/ SWG, Dolphin Z5 Robot

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    Join Date
    Mar 2015
    Location
    Georgia
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    157

    Re: Calculating pool volume

    Since they are both connected to the same body of water then yes add them together if you can. The goal is to have the right amount of gallons of water that you are treating so you get the right dosage amount. Though a spa that is 500 gallons in size probably wont make much difference in the dosage amount with ~14,000 gallons of water.
    16k AG Vinyl Sand Filter

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    Join Date
    Jun 2015
    Location
    Eastvale, CA
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    15

    Re: Calculating pool volume

    Great thanks! First pool and not sure how accurate volume needs to be.

  4. Back To Top    #4
    Richard320's Avatar
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    Jan 2010
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    San Dimas, CA (LA County)
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    18,768

    Re: Calculating pool volume

    Quote Originally Posted by mrweber View Post
    Great thanks! First pool and not sure how accurate volume needs to be.
    Pay close attention when you're adding chemicals. If you start with, say 15,000 gallons calculated and you consistently overshoot, lower the volume you use in poolmath by 1000. If you come up short, increase it 1000. After a couple weeks, you see things going up or down, fine tune it again. Eventually you will hit a number that consistently gives you the results you expect. Poolmath - and especially Effects of Adding Chemicals down at the bottom of it - is your best friend.
    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!

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