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Thread: How much MA to drop the TA

  1. Back To Top    #1
    wjr75's Avatar
    Join Date
    Jun 2013

    How much MA to drop the TA

    Hello All,
    How much MA would be required over time to drop my TA from 80ppm to 50ppm in a 900 gallon hot tub? I want to add boric acid once the TA gets down to around 50ppm without having to test TA all the time prior.

    Inground 22k gallon gunite 15x31 main pool, 15x7 wading pool/sunning deck, hot tub/with overflow (9' octagon with limestone top) & slide NSWG, Aqua Blue Pebble Sheen
    Filter dual cartridge Sta-rite 450sq/ft, TF-100 Test Kit
    Heater Raypak 2100 400k btu cupro-nickel exchanger
    Auto pool cover, Polaris 280 auto pool cleaner, Jandy AqualinkRS8 Remote Control System

  2. Back To Top    #2
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: How much MA to drop the TA

    7 or 8 oz should do it.
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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