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Thread: Startup after drain and acid wash

  1. Back To Top    #1

    Join Date
    Mar 2014
    Murrieta, CA

    Startup after drain and acid wash


    We just drained and acid washed the pool. Need to know what i need to add to get the water in balance. Our typical TA and PH from the tap is 220 and 8.2 respectively. I use trichlor for sanitizer, so do i need to add CYA to startup the pool?
    22.5K Gal IG Pebble with attached spa

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Startup after drain and acid wash

    Welcome to TFP!!!

    What test kit are you using? You need one of the Recommended Test Kits if you want to understand and balance your pool.

    Have you read much of Pool School? I would highly suggest starting with these:
    ABCs of Water Chemistry
    Recommended Pool Chemicals
    How to Chlorinate Your Pool

    Using trichlor is not a long term solution especially in an area where the pools are not partially drained for the winter.

    You will certainly want to get some CYA in the water (and then not use tablets). And you will certainly need muriatic acid to lower the pH (and slowly the TA). Whether you need to adjust the CH is unknown due to lack or results.

    Why did you need an acid wash? Did you have calcium scaling as a result of high CH and high ph?
    Jason, TFP Moderator
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  3. Back To Top    #3
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Midland TX

    Re: Startup after drain and acid wash

    Welcome flyer!

    Good advice already, just wanted to say welcome to TFP. Best of luck!
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

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