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Thread: Absorb CH from CH Scale?

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    Join Date
    Dec 2012
    Manassas Park, VA

    Absorb CH from CH Scale?

    I recently drained my pool and did a light acid wash. However I was unable to get all of the calcium scaling removed. My fill water has low CH (~90), it is my understanding that having low CH in the water can result in leeching CH from the plaster, would it be able to leech CH from the CH scaling?
    25,000 gallon in ground white plaster- 1 1/2 HP Pentair SuperFlo pump - 60 sqft FNS DE filter (with FiberClear), 1999 Sundance Optima 850 hot tub.
    Manassas Park, VA

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

    Re: Absorb CH from CH Scale?

    Yes, but at a glacial pace. It's not so much just having low CH, but maintaining a negative CSI. Pool Calculator can crunch the numbers for you. I try to keep things about -.5, but its not always possible, especially as the water warms up. progress-on-scale-t38568.html
    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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