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Thread: when if to culture water

  1. Back To Top    #1



    Join Date
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    when if to culture water

    Less than two years with a pool but it is in pretty good TFP shape.

    If a pool is well circulated, sanitized and balanced, it must be unlikely that there will be harmful organisms in the water.

    But is there ever a
    1) time when or
    2) reason why
    one should culture the water?

    Searched TFP for "culture" but did not find, nor with google.

    Thank you
    IG under fir trees and one cherry surrounded by grass built in 1979, 30k, plaster, old Sta-Rite HRPB30, 4.9 sq.ft, 20 GPM/sq.ft., but with new glass, new (in 2012) 1 HP WhisperFlo one speed, new (in 2013) Rainbow tab chlorinator attached at the top, old Maxi-Flo Heat Exchanger MF-260, Burnham V7 oil heater 245 MBH, new (in 2012) Compool to Easytouch, Taylor K-2005 and TF-100.

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    Mod Squad jblizzle's Avatar
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    Re: when if to culture water

    No point. Just maintain adequate FC for your CYA level and nothing can live in the water.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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  3. Back To Top    #3



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    Re: when if to culture water

    got it thank you

    but say I get sloppy and for a day or two or three FC is too low
    but water stays clear and I then get back up to speed

    still then no need to worry?
    IG under fir trees and one cherry surrounded by grass built in 1979, 30k, plaster, old Sta-Rite HRPB30, 4.9 sq.ft, 20 GPM/sq.ft., but with new glass, new (in 2012) 1 HP WhisperFlo one speed, new (in 2013) Rainbow tab chlorinator attached at the top, old Maxi-Flo Heat Exchanger MF-260, Burnham V7 oil heater 245 MBH, new (in 2012) Compool to Easytouch, Taylor K-2005 and TF-100.

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
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    Re: when if to culture water

    Then you should follow the ShockLevelAndMAINTAIN Process ... or at least Perform the Overnight Chlorine Loss Test to see if anything is in the water.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. Back To Top    #5



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    Re: when if to culture water

    ok
    thanks
    IG under fir trees and one cherry surrounded by grass built in 1979, 30k, plaster, old Sta-Rite HRPB30, 4.9 sq.ft, 20 GPM/sq.ft., but with new glass, new (in 2012) 1 HP WhisperFlo one speed, new (in 2013) Rainbow tab chlorinator attached at the top, old Maxi-Flo Heat Exchanger MF-260, Burnham V7 oil heater 245 MBH, new (in 2012) Compool to Easytouch, Taylor K-2005 and TF-100.

  6. Back To Top    #6

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    when if to culture water

    This has certainly been discussed a lot, but I'll bring it up again - OCLT's are generally not a very good diagnostic tool at Target FC levels.

    The OCLT was conceived as a set diagnostic criteria to be checked during a SLAM. Those criteria do not necessarily make sense at Target FC levels.

    That being said, failing OCLT at Target FC is probably not a good a sign of pool water health, but passing OCLT may or may not mean anything.

    As for culturing your water, that just doesn't make sense for a whole bunch of reasons not least of which is sample control. It's very easy to contaminate a sample prior to spreading it on an agar plate for bacteria/algae growth.



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