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Thread: How long to wait ?

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    Spiccolli's Avatar
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    How long to wait ?

    fc 7.0
    ph 7.4
    cya 50
    ta 110
    cc 0


    from what i understand reading this site, it is a good idea to bump up my fc a couple right before people are going to be swimming if there are a good number of them or if there are a few kids. prevention instead of fixing, right?

    so my question is, i get a phone call that 8 people including kids are coming to swim in like 10 mins, can i drop in my 36 oz. of 10% before they jump in?

    how much can i pour in? (maybe i am 3 below target and want 2 above, so i need like 90 oz.)
    any good rules of thumb?

    thanks again for all the clean water and help
    1992 15X30 14000 Gal IG plaster, Pentair 011018 - Intelliflo VS Pump with Timer, 350 lb Sta-rite hrpb30 sand (yeah, the 32-bolt clamshell)

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    Butterfly's Avatar
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    Re: How long to wait ?

    Add the amount of chlorine that is needed and circ for about half an hour. You're good to go.
    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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    Administrator Leebo's Avatar
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    Re: How long to wait ?

    It also helps if you brush the pool to help circulate the chlorine around some too. That.....and we're all guilty of not brushing the pool enough.

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    Spiccolli's Avatar
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    Re: How long to wait ?

    awesome - thanks guys. i'll stick with the 30 min rule.

    what about acid? - say i was putting it in and got surprised by a visit from anxious swimmers?

    30 mins there too?

    Thanks Again!!
    1992 15X30 14000 Gal IG plaster, Pentair 011018 - Intelliflo VS Pump with Timer, 350 lb Sta-rite hrpb30 sand (yeah, the 32-bolt clamshell)

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    Richard320's Avatar
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    Re: How long to wait ?

    [center:lapkh8qh]30 minutes is being generous. If you want to mix it up fast, buy yourself a Wall Whale.


    One lap around the pool brushing every couple feet will mix it up good enough that no one will hit a pocket of acid or bleach.
    And then once they get it, they'll finish mixing it.[/center:lapkh8qh]
    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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    Spiccolli's Avatar
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    Re: How long to wait ?

    With my cya at 50, the cl/cya chart says that my free cl min is 4 and target is 6 and shock is 20.

    Is there any harm keeping my cl at 8 instead of 6 - just in case there is a sudden heavy bather load?

    I'm fine with bumping it up a couple before hand, but it would be easier just to keep it there at all times.

    What about 10 or more (stay below shock level of course)? Does this have an adverse effect on chemistry?

    If my cl daily loss is about 2ppm, would it increase the higher above target that I go? cuz that would mean more money and I'm not into that

    Thanks for any clarification.
    1992 15X30 14000 Gal IG plaster, Pentair 011018 - Intelliflo VS Pump with Timer, 350 lb Sta-rite hrpb30 sand (yeah, the 32-bolt clamshell)

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    Re: How long to wait ?

    If my cl daily loss is about 2ppm, would it increase the higher above target that I go?
    Yes, that's really the only reason.....it just costs more....quite a bit more. There is no change to the chemistry if you choose to run FC that high.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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