Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 3 of 3

Thread: Best Way to Add MA

  1. Back To Top    #1

    Join Date
    Jun 2008
    Thornton, PA

    Best Way to Add MA


    I just got my plaster re-polished, and it's smooth as can be. Happiness and light... (or as much as is possible -I guess) So I get thinking about how to keep it that way. I want to do my best to prevent etching. The etching was worst in the deep end, by the skimmer, which tells me that the the acid start up, had the (presumably) heavier/ more dense acid sitting on the low part of the pool, eating away my plaster....

    So I'm now at the point were I use a 5 gallon jerry-can of MA and every three days or so I add about a third of it. I usually ad it from one place -because the 5 gallon can is not light. I'm wondering whether there is a better way to diffuse the acid so it mixes better with the water, and therefore does not sit against my plaster.

    Should I dilute it first? Add it to a 5 gallon bucket with 4 gallons already in?

    Is there some other sort of a diffuser device I can use/ make?

    Should I add it to the pool in more than one spot?

    I gather that the in-line systems are pricey, and I worry about injecting acid into my plumbing -sound like a formula for decay/ leaks to me...

    So what should I do, be doing?

    Input would be very useful.


    28K Gal. 802 Sq Ft., Free Form, IG, Gunnite with Midnight Maui Hydrazzo Carlton Pool. Exposed Aggregate Decking. Jandy DE Filter, 1.5 HP Jandy Pump, SWCG. Zodiac 380 pressure-side cleaner. Completed Construction: May 2008.

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

    Re: Best Way to Add MA

    Acid should be poured slowly in front of a return jet with the pump running.
    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

  3. Back To Top    #3

    Join Date
    Apr 2007

    Re: Best Way to Add MA

    I didn't even know you could re-polish plaster. Interesting.

    14,000 gallon, in ground, plaster, free form, play pool.
    Sta-Rite Max-E-Glass with a 1.5 hp Emerson motor
    WaterCo Micron High Rate sand filter S750 490 lb, 4883 sq ft - using ZeoBest
    In floor Polaris cleaning system
    Blue Diamond robot for those after storm days when I can't wait overnight for the in floor to clean it.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts