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Thread: Pool party tomorrow - Chlorine level?

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    First Pool Judith's Avatar
    Join Date
    Feb 2014
    Location
    Georgetown, Texas
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    57

    Pool party tomorrow - Chlorine level?

    We're having our first larger pool party tomorrow. We're expecting about 20 adults. What should my chlorine level be?

    Currently

    FC: 5
    CC: 0
    PH 7.6
    TA: 80
    CH 350
    CYA: 45
    Judith and Brian D
    16,000 gal; IG Quartscape; Cartridge Jandy CV460 (150 gpm Max); Jandy Pro 2.0 Variable
    Polaris PB460 3/4 booster; Polaris 280 Cleaner; In Line Chlorinator Tri-Chlor (don't use it) Ozonator
    Fill Date 11/11/2013

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    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
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    12,082

    Re: Pool party tomorrow - Chlorine level?

    (20 people) * (4 grams per person-hour) * (1000 mg/g) / (60567 liters) = 1.3 mg/L/hour so only if all 20 people were in the pool for several hours would you need to significantly elevate the chlorine level. I'd say if you raised it to 8 ppm you should be OK unless all 20 are going to stay in the pool for more than a couple of hours. Odds are only some will be in the pool at any given time. Of course, factor in your normal daily loss rate which is probably around 1.5 ppm FC (which excludes overnight loss). You can then just add more chlorine right after the party is over as needed.

    This also assumes these adults don't pee in the pool.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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    First Pool Judith's Avatar
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    Feb 2014
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    Georgetown, Texas
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    Re: Pool party tomorrow - Chlorine level?

    Perfect - and you're right - there will probably only be a few people in at any given time. Thank you!!!
    Judith and Brian D
    16,000 gal; IG Quartscape; Cartridge Jandy CV460 (150 gpm Max); Jandy Pro 2.0 Variable
    Polaris PB460 3/4 booster; Polaris 280 Cleaner; In Line Chlorinator Tri-Chlor (don't use it) Ozonator
    Fill Date 11/11/2013

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    Re: Pool party tomorrow - Chlorine level?

    8 ppm would be a nice pre-party number. Test again shortly after pool party and adjust if necessary.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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