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Thread: I am showing Nitrates again

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    I am showing Nitrates again

    Opened pool yesterday......brought water in to test everything is "PERFEFCT" except I am showing Nitrates again tester said I am at 10 when last year we were over 25 and we drained and refilled and were fine the rest of the summer.
    I put 5lbs of shock in (per pool guys reccomendation) he said if today I showed no chlorine (there is none) we would have to drain again. because the number is lower than last year does it make sense to drain half this time or should I just drain the whole thing??

    Please Please HELP!!!!
    It's an inground concrete pool 48,000 gallons

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    Re: I am showing Nitrates again

    Ignore the Nitrates level, that doesn't mean anything.

    What are your other levels?
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: I am showing Nitrates again

    FAC 0
    TAC 0
    Water pH 7.6
    TA 90
    CYA 30
    Calcium Hardness 180
    TDS 500
    Nitrates 10ppm
    Phosphates 0
    Nitrogen 30

    Water is clear. I added 5lbs of of Leslie's power powder plus yesterday.

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,879

    Re: I am showing Nitrates again

    [shock:3bq6y588]I recommend shocking the pool.[/shock:3bq6y588]

    If you have doubts, you can do an extreme chlorine demand test, to get an estimate of how much chlorine it will take to clear things up.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Richard320's Avatar
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    Jan 2010
    Location
    San Dimas, CA (LA County)
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    18,768

    Re: I am showing Nitrates again

    I have no idea what my nitrate level is. Nor my phosphate level. Never had either one tested. But my pool is so clear you can toss a dime in the deep and and call heads or tails. And I can swim around underwater with my eyes open with no discomfort at all.

    I've done it with my own test kit, pool calculator, and a little time every day. You can do it, too.
    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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