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Thread: Switching from Perma-salt to BBB

  1. Back To Top    #1

    Join Date
    Apr 2015

    Switching from Perma-salt to BBB

    I can't find on here how to start a new post so hopefully someone can help me here. I am wanting to switch over this year to the BBB method. I have been on perma salt for 4 yrs. could someone tell me how much borax and acid I need to start off with. My pool is above ground 33'x54" 28,000 gal.

  2. Back To Top    #2
    northrn's Avatar
    Join Date
    May 2014
    Cincinnati, OH

    Re: Switching from Perma-salt to BBB

    You should try Pool School first so that you have an idea about what to add and when to add it.


    After that, Pool Math will assist you in determining amounts of each chemical.


    Also, very helpful to everyone that may lend you advice is information about your pool and set up listed in your signature.

    How to update signature and other useful information

    Welcome to TFP!
    27' AG 18K Gallons ~ Cartridge Filter ~ Pentair 1.5 HP Pump

  3. Back To Top    #3
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Columbia, SC

    Re: Switching from Perma-salt to BBB

    Welcome to TFP!

    Are you doing a water exchange before switching? Perma Salt is really a copper/silver system, which can cause really bad staining of your pool. It would really be best to get it all out of the water so you don't have to deal with sequesterants if at all possible.

    We don't recommend folks stocking up on anything other than chlorine. The old "BBB" name makes people think you are adding all these things all the time. My pool as an example only ever sees bleach and a little muratic acid to keep the pH in check.

    The first thing you will need is one of the recommended test kits. You can buy a kit at a pool store, but again the pool store kits generally won't cut it. To effectively practice the TFPC methods, the FAS/DPD chlorine test is essential. All these kits contain that test while very few other kits do.

    How much Pool School have you read? Start with these:
    ABCs of Water Chemistry
    Recommended Pool Chemicals
    How to Chlorinate Your Pool
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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