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Thread: Draining to lower Cyanuric Acid

  1. Back To Top    #1

    In the Industry

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    Draining to lower Cyanuric Acid

    I'm draining a pool to lower extremely high Cyanuric Acid levels.

    I've heard it's bad to completely drain a pool.

    How much can I drain it safely when doing a partial drain?

    Thank you.

  2. Back To Top    #2
    linen's Avatar
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    Re: Draining to lower Cyanuric Acid

    Depends on pool surface type, ground water level, and ambient temperature. Plaster and fiberglass pools can "pop" out of the ground if the ground water level is high and vinyl liner pools can "float". Also, in hot weather plaster pools surfaces can crack. For vinyl pools, assuming you do not have high ground water levels, you should be able to drain down to 1 foot depth in the shallow.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  3. Back To Top    #3

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    Re: Draining to lower Cyanuric Acid

    Thank you.

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