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Thread: When to start with boric acid

  1. Back To Top    #1

    Join Date
    Aug 2015

    When to start with boric acid

    Hello, i have fill today my spa with new water, and starting with Dichloor 8 gram til i have (30/40 CYA).

    But when is the time to start boric acid.
    My spa is 225 gallon (ca 900 ltr)
    Factory is Caldera
    Above ground
    6 months old now.

  2. Back To Top    #2
    JoyfulNoise's Avatar
    Join Date
    May 2015
    Tucson, AZ

    Re: When to start with boric acid

    You should only add your borates once you've gotten your TA lowered to 50ppm. Adding them before that will make it much harder to lower your TA as the borates will buffer pH changes.
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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