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Thread: Phosphates test at 500ppb

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    morzh's Avatar
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    Phosphates test at 500ppb

    Took water to test in a pool store I go to, they have computerised testing.
    Amongst other things the results show 500ppb phosphates. I do not use any lawn chemistry, so the explanation suggested by the store guy was "dead algae"I. (I had light algae bloom yesterday (first in the two recent years) that I quickly squished with keeping the pool at 22ppm chlorine for 24hrs.)

    Is this a plausible reason and what is the best remedy to remove the phosphates (I know what the store will sell me).


    Best

    Mike
    Seasonal World rectangular pool, 27K gallons (data sheet), 25.3K calculated
    Jandy Stealth JHPU 2.0 PUMP, 2HP
    Jandy CL340 cartridge filter
    Pentair C320 inline chlorinator
    AquaComfort heatpump heater

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    duraleigh's Avatar
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    Re: Phosphates test at 500ppb

    Base on this post and your CYA thread you are getting some really bogus advice and test results. Until you believe in doing your own testing we can only guess along with you about what is really going on.

    That said, phosphates are bogus (they are not relevant) to begin with so I would suggest you read "The ABC's of Pool Water Chemistry" up in Pool School.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    morzh's Avatar
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    Re: Phosphates test at 500ppb

    Duraleigh

    Thanks. Will keep in mind.
    Seasonal World rectangular pool, 27K gallons (data sheet), 25.3K calculated
    Jandy Stealth JHPU 2.0 PUMP, 2HP
    Jandy CL340 cartridge filter
    Pentair C320 inline chlorinator
    AquaComfort heatpump heater

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    PoolguyinCT's Avatar
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    Re: Phosphates test at 500ppb

    As a pool contractor - I have treated phosphates maybe 5 times in last 15 Yrs. I am not obsessed with phosphates, though the science is legit - it rarely holds water (pun intended) in practice...

    Ray

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