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Thread: Is salt level change an OK way to guestimate pool capacity?

  1. Back To Top    #1

    Join Date
    Oct 2014
    DFW Texas

    Is salt level change an OK way to guestimate pool capacity?

    Ive tried the calculator for size and average depth but That ia jsut a WAG... Since I am converting to salt, I though, "hey, I can figure out how much water I have.

    I was at 400 ppm salt and then I added 520lbs of salt (13 bags)

    I am now at 2800 ppm

    using the pool calculator by putting in 400 > 2800 and adjusting the gallons of water, The required salt hits 520 lbs at about 25000 gal...

    How accurate do you think that is? I had actually been estimating 25k gallons using the length/width /av depth method so I have to believe it is pretty close...

    haha, the guy at the pool store did some napkin math and said I have a 34,000 gal pool... which would be nuts.

    Looks like I need another 120 lbs of salt to get to 3400 ppm.
    7-10 year old In ground 20,000 gal, Aquabright ecofinish W/ Spa, Propane heater, waterfall and infinity jet, 60 sq foot DE filter, Intellitouch+Intelliflow pump, IC40 cell, Racer cleaner

  2. Back To Top    #2
    JVTrain's Avatar
    Join Date
    Feb 2014
    Central Minnesota

    Re: Is salt level change an OK way to guestimate pool capacity?

    Chemical additions are the best way to determine pool volume, especially salt since you're adding alot and it's 100% salt, and once it's in the pool, it's not going anywhere else.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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