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Thread: CSI- Pool Calculator

  1. Back To Top    #1

    Join Date
    Jan 2009
    Atlanta, GA

    CSI- Pool Calculator

    Could someone explain to me how the CSI section of the Pool Calculator works? Is it calculating what my CSI is "now" (left box) and what the "goal" (right box) should be?
    Atlanta, GA

    Inground Vinyl, 30,000 gallon, 20x40 Lagoon, Pentair Single Speed 1-1/2 hp Superflow, Pentair SD 80 Sand Filter, Polaris 280 cleaner w/ Booster pump, Pentair Easytouch.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: CSI- Pool Calculator

    My Pool Calculator figures out what the CSI is based on the values you enter. It does this twice, once for the values entered in the Now column and once for the values entered in the Goal column.

    It is important to understand that my Pool Calculator never tells you what the goal should be. You tell it what you want the goal to be and it then tells you what to add to reach that goal.

    The idea behind calculating the CSI for both the Now and Goal columns is that you can enter your current values in the Now column and see your current CSI. Then you can try out different values in the goal column to see what would be a good way to reach some particular CSI value you want to achieve.

    Keep in mind that CSI can actually vary quite a bit without causing any problems. If you follow the suggested levels in this Pool School article you don't normally need to think about CSI at all. It is really only when you have a plaster/pebble pool and have some reason to be far from the recommended levels that you need to keep an eye on your CSI to be sure it doesn't get wildly out of range.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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