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Thread: How long does it take and where does the P go?

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    How long does it take and where does the P go?

    This is probably been discussed prior but I can't find it. I know that the chlorine neutralizes or somehow reacts and eliminates waste in the pool. I had a group of kids of all ages over yesterday, and I up the sanitizer prior to the swim fun to help, but I was just curious what is the process for removing substances left behind by the young ones? I did have a meeting prior with the kids explaining to them to exit the pool, but you know how that goes. anyway this is more of a learning topic for me than a concern because I know it is sanitized. I had the chlorine pumped to 7.5 to 8 prior to the swim it it was still at 7 at days end, and the pool remains very clear, so I think they did a pretty good job. CYA at 65. Curious about the whole chemical reaction and timing thing.
    Thx


    ~14K gallon - AquaRite AQR15 SWG - pool Newly plastered on April 9 2016
    TF100 kit - STA-RITE SYSTEM3 Modular Media Filtration - Model S8M150
    Pool water supply from on site water well = CH of ~350 and TA of ~350
    Doheny's Discovery Automatic Robotic Cleaner/Pentair Model 011018 VS Pump
    Sundance Altamar Hot tub separate from pool / central Oklahoma

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    Re: How long does it take and where does the P go?

    It doesn't go anywhere.

    The chlorine will burn up any organic materials and turn into CC, but the pint of P is there forever, heck its 99.99% water anyhow.
    16 x 32 17500 gallons
    Vinyl in-ground
    Hayward 250# Sand Filter
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    Re: How long does it take and where does the P go?

    I'd bet that you not losing much chlorine all day indicates that the kids actually listened pretty well.

    17,500 gallon IG Vinyl
    Pentair Tagelus TA60D Sand filter
    Pentair Challenger 1.5HP pump CFII N1 1.5A
    Taylor K-2006-A, Stenner 45MPHP10 auto chlorine feed

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    JoyfulNoise's Avatar
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    Re: How long does it take and where does the P go?

    Every person-hour of bather waste requires ~ 4 grams of chlorine gas equivalent to neutralize.

    1 cup of urine is the equivalent of 6 person-hours worth of bather waste.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Kiss4aFrog's Avatar
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    Re: How long does it take and where does the P go?

    I just can't help it. Every time I come across a bather waste thread all I can think of is Bill Murray in Caddy Shack at the bottom of the pool with the Baby Ruth

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    Re: How long does it take and where does the P go?

    Thanks for the laugh, I love it!


    ~14K gallon - AquaRite AQR15 SWG - pool Newly plastered on April 9 2016
    TF100 kit - STA-RITE SYSTEM3 Modular Media Filtration - Model S8M150
    Pool water supply from on site water well = CH of ~350 and TA of ~350
    Doheny's Discovery Automatic Robotic Cleaner/Pentair Model 011018 VS Pump
    Sundance Altamar Hot tub separate from pool / central Oklahoma

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    Re: How long does it take and where does the P go?

    Quote Originally Posted by JoyfulNoise View Post
    Every person-hour of bather waste requires ~ 4 grams of chlorine gas equivalent to neutralize.

    1 cup of urine is the equivalent of 6 person-hours worth of bather waste.
    4 grams of Chlorine gas = ____ oz. of 12.5% bleach? I couldn't figure out the formula using the poolmath. Thanks Matt!

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    Re: How long does it take and where does the P go?

    Oxidization of urea

    4 grams Cl2 = 1.1 oz 12.5 % bleach.

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    Re: How long does it take and where does the P go?

    For small pools that can be pretty significant FC loss! For a 6K gallon pool that is over 1ppm. Ewwww.

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    Re: How long does it take and where does the P go?

    Quote Originally Posted by Griswald View Post
    It doesn't go anywhere.

    The chlorine will burn up any organic materials and turn into CC, but the pint of P is there forever, heck its 99.99% water anyhow.
    Urine and other bather wastes will be completely eliminated by chlorine.

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    Re: How long does it take and where does the P go?

    Quote Originally Posted by JamesW View Post
    Urine and other bather wastes will be completely eliminated by chlorine.
    Thanks, that is a VERY welcome post.


    ~14K gallon - AquaRite AQR15 SWG - pool Newly plastered on April 9 2016
    TF100 kit - STA-RITE SYSTEM3 Modular Media Filtration - Model S8M150
    Pool water supply from on site water well = CH of ~350 and TA of ~350
    Doheny's Discovery Automatic Robotic Cleaner/Pentair Model 011018 VS Pump
    Sundance Altamar Hot tub separate from pool / central Oklahoma

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    Re: How long does it take and where does the P go?

    Since we installed a powder room in our garage, (quick access and no need to go into an air-conditioned house), the frequency of bathroom breaks from the pool dramatically increased.

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    Re: How long does it take and where does the P go?

    HAHA.... I have a heavily wooded lot, little over 1 acre, and I noticed when I told the boys they could just go around the trees and do their thing, they seemed to take advantage as well. Probably saved me at least 1 ppm!



    ~14K gallon - AquaRite AQR15 SWG - pool Newly plastered on April 9 2016
    TF100 kit - STA-RITE SYSTEM3 Modular Media Filtration - Model S8M150
    Pool water supply from on site water well = CH of ~350 and TA of ~350
    Doheny's Discovery Automatic Robotic Cleaner/Pentair Model 011018 VS Pump
    Sundance Altamar Hot tub separate from pool / central Oklahoma

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    JoyfulNoise's Avatar
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    Re: How long does it take and where does the P go?

    Quote Originally Posted by Lykly View Post
    HAHA.... I have a heavily wooded lot, little over 1 acre, and I noticed when I told the boys they could just go around the trees and do their thing, they seemed to take advantage as well. Probably saved me at least 1 ppm!



    Sent from my iPhone using Tapatalk
    I see no problem with a little extra fertilization of the woodlands
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: How long does it take and where does the P go?

    Quote Originally Posted by JoyfulNoise
    Every person-hour of bather waste requires ~ 4 grams of chlorine gas equivalent to neutralize.

    Quote Originally Posted by JamesW View Post
    Oxidization of urea

    4 grams Cl2 = 1.1 oz 12.5 % bleach.
    James, thank you for the reply. Does it mean that seven people in the pool for one hour will require about a cup of 12.5% chlorine, no matter what the size of the pool is?

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    Re: How long does it take and where does the P go?

    Yes, on average.

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