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Thread: Help removing calcium buildup on tile

  1. Back To Top    #1

    Join Date
    Apr 2017

    Help removing calcium buildup on tile

    Bought a house with a pool. My first pool and unfortunately it has not been taken care of all. Chemistry is all out of whack which I am working on. It is about a 13k plaster pool and spa with a SWG. Ca is close to 2k so I know what the problem is. I am draining the spa as I write this to remove some brown stains (and start to dilute my off the chart chemistry). I worked on one tile for over an hour. I used muriatic acid and Bio Dex 300. I used soft brushes, steel brushes, chisels and finally a straight razor (I know the risks). I do not want to have someone come out and drain the pool, blast it, and have more problems than I do now--I really don't (if I have learned nothing else, it have learned--trust no one). Any ideas? It is about 3/16 inch thick. When you spray muriatic acid on it nothing happens (no fizzing).

    After two weeks I think I have a lifetime of stories! Can't imagine the stories the rest of you have.

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  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Help removing calcium buildup on tile

    It's a lot of work no matter how you attack it. You might find inspiration here.
    Blasting limescale off my pool walls - DONE REPORT POSTED
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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