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

Thread: How do you do in water acid wash to get rid of extra calcium

  1. Back To Top    #1

    How do you do in water acid wash to get rid of extra calcium

    How do you do in water acid wash to get rid of extra calcium on plaster?
    Mike Marchi
    Southern California
    14000 Gal IG Pool, Dark Grey Plaster, Purex 4000 DE Filter (54Cubic Ft), WisperFlo 2HP pump
    Purex 400000 BTU Heater, Navigator Pool Cleaner, Granite waterfall with 2HP pump

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: How do you do in water acid wash to get rid of extra calcium

    Welcome to TFP!

    A no drain acid wash can be rather risky, tends to take weeks, and usually doesn't work. You risk damaging the plaster, since the acid will act everywhere, not just where there is scaling. If there is a heater with a copper heat exchange coil you must bypass it. And finally, all of the calcium ends up in the water, which means you will need to do a massive water replacement when you are done.

    In nearly every case it is better to drain and do a normal acid wash.

    If you still want to proceed, the steps are all laid out in the Jack's Magic Stain Solution #2 Treatment directions. You can also do much the same thing with muriatic acid and any calcium specific sequestrant.
    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

    Re: How do you do in water acid wash to get rid of extra calcium

    My pool water is 5-6 years old and the calcium deposits on the plaster are all over the surface. would it be better to drain the pool and acid wash it with it drained?
    Mike Marchi
    Southern California
    14000 Gal IG Pool, Dark Grey Plaster, Purex 4000 DE Filter (54Cubic Ft), WisperFlo 2HP pump
    Purex 400000 BTU Heater, Navigator Pool Cleaner, Granite waterfall with 2HP pump

Posting Permissions

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