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Thread: Opening #s

  1. Back To Top    #1

    Opening #s

    Wow! After using BBB for the first time last year, my pool opened very well. Here's where I stand after adding a jug of bleach and running the pump for 2 days:

    FC: 7
    CC: 0
    TC: 7
    PH: 7.8
    TA: 130
    CH: 230
    CYA: 85

    I'm going to add a bag of cal-hypo to raise the FC to 10 and increase the CH a little bit. I'll also add 8oz of dry acid to bring the PH and TA down a little bit.
    15,000 gallon unpainted plaster. Sand filter. Polaris 380.

  2. Back To Top    #2

    Re: Opening #s

    Sounds like you have done your homework Keep an eye on that CYA level it is a bit on the high side.
    20k gal. IG fiberglass/plaster rectangle 32'x16'
    Hayward Superpump 3/4 H.P. primary Hayward model 5060 Booster Pump
    Hayward Pro Series High Rate Sand Filter
    Pentair Model 320 automatic Chlorine/bromine in-line feeder

  3. Back To Top    #3
    Butterfly's Avatar
    Join Date
    May 2007
    South Carolina

    Re: Opening #s

    Good work

    Yep, keep an eye on that CYA

    I am curious, did you close with that same CYA?
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

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