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Thread: how long to wait

  1. Back To Top    #1

    how long to wait

    i have enough to shock but not of the same chlorine how long after adding about 5 lbs of cal hypo do I have to wait before safely adding bleach?
    21X41, 30,000, ig, vinyl,48sf de, 1hp hayward super pump, 2" piping, 2 skimmers, 1 main inlet, 2 return, built in 1988, no enclosure, lots of trees around, direct sun. Thanks in advance to all who have answered my questions.

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    Join Date
    Feb 2008
    Location
    Denton, TX
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    Re: how long to wait

    Long enough for the granules of cal-hypo to completely dissolve.

  3. Back To Top    #3

    Re: how long to wait

    I tested my ch at about 90
    I added 10 lbs of cal hypo before 5 am ( not added at the same time)
    now its about midnight and I tested it again and got the same reading

    how long does it take the calcium to dissolve?

    am I testing wrong
    25 ml water
    20 drops of r 10
    5 drops of r 11L
    1x10 drops r 12 .. 9 drops i get 90 its a little hard to tell when the color changes because its so light
    21X41, 30,000, ig, vinyl,48sf de, 1hp hayward super pump, 2" piping, 2 skimmers, 1 main inlet, 2 return, built in 1988, no enclosure, lots of trees around, direct sun. Thanks in advance to all who have answered my questions.

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