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Thread: quick question re: time

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    Join Date
    Jul 2014
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    St. Simons Island, GA
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    quick question re: time

    I anticipate a heavy load on pool tomorrow for Memorial Day. Today, as I was vacuuming up a ridiculously large accumulation of crud on the floor since yesterday, I noticed water was cloudy, so I tested and surprise, FC was below 2 ppm. I added a gallon of 10% bleach to bring FC up to the mid-teens.

    Question: How much of that will bleed off overnight and with morning sun? In other words, what is my anticipated FC level for tomorrow afternoon when the crowd arrives?


    PS- using this solar blanket sure has warmed the pool up a lot, but it also seems to be making my FC levels go haywire.

    PPS. - apparently I messed up the timing between my pump and the SWCG; hence no generation of chlorine...either that or the solar blanket is more difficult to manage than I anticipated.
    Home pool: Intex 11,400 gallon AG vinyl pool with sand filter & SWG. Taylor K-2006 test kit - coastal Georgia. I'm also in charge of the Elk's Lodge Pool, which is 55,000 gallons in-ground concrete with sand filter, 2 HP Hayward pump, currently using tri-chlor pucks and cal-hypo system.

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    Richard320's Avatar
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    San Dimas, CA (LA County)
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    Re: quick question re: time

    Need to know the CYA level to even guess what the FC level should be and how fast it will drop. But the simplest thing is to just measure FC an hour before guests arrive and dump some bleach in to bring it up to the top of the target for your CYA. If there's a bunch of people and nice weather, set the SWG on high.
    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.
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    Join Date
    Jul 2014
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    Re: quick question re: time

    CYA at proper level. 75-ish
    Home pool: Intex 11,400 gallon AG vinyl pool with sand filter & SWG. Taylor K-2006 test kit - coastal Georgia. I'm also in charge of the Elk's Lodge Pool, which is 55,000 gallons in-ground concrete with sand filter, 2 HP Hayward pump, currently using tri-chlor pucks and cal-hypo system.

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    Mod Squad pooldv's Avatar
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    Aug 2012
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    Re: quick question re: time

    I would use bleach to bump up FC to around 10 anytime you expect lots of swimming.
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