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Thread: Treating cold water

  1. Back To Top    #1

    Join Date
    May 2007
    Location
    Alberta, Canada
    Posts
    174

    Treating cold water

    I'm getting a lot of grief from the "pool guy" who supplies some of our chemicals.
    He says that until I heat the pool my test readings are not accurate.
    I've never heard of that before but he's got me doubting myself.
    We are not opening until the 15th so I did not want to turn on the heat until this Sunday.

    Is there any truth to the "pool guys" cold water theroy?
    FC 12
    CC 0
    Ph 7.3
    Alk 100
    CYA 20ish
    CH 300
    Water temp 10 C
    Deena
    http://www.lindbrookstargazer.ca
    100,000 liter IG vinyl liner
    Rolachem Chlorine & Muratic acid Auto feeders/Pool Perfect Auto feeder
    Pentair 30" filter (Tagelus) Sand filter/Centruion switchless pump 1.5/.25 HP

  2. Back To Top    #2
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,963

    Re: Treating cold water

    Tell me again what 10 celsius is in Farenheit?

    No, you can test the numbers, CH and CYA will likely be inaccurate but the others are fine. Several hours of circulation prior to first test are essential, however. For the CYA, just allow that sample of water to come to room temp before you test. PH, TA and FC you can test at cold temps.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  3. Back To Top    #3

    Join Date
    May 2007
    Location
    Alberta, Canada
    Posts
    174

    Re: Treating cold water

    LOL....it's about 50 F, I think. I just call it immediate hypothermia.
    The pool has been circulating for about a week. CYA is in as of Wednesday so I'll test it next week.
    We are turning the heat on tomorrow to make sure we have time to fix anything before the long weekend opening.
    Thanks so much for your help.


    Quote Originally Posted by frustratedpoolmom
    Tell me again what 10 celsius is in Farenheit?

    No, you can test the numbers, CH and CYA will likely be inaccurate but the others are fine. Several hours of circulation prior to first test are essential, however. For the CYA, just allow that sample of water to come to room temp before you test. PH, TA and FC you can test at cold temps.
    Deena
    http://www.lindbrookstargazer.ca
    100,000 liter IG vinyl liner
    Rolachem Chlorine & Muratic acid Auto feeders/Pool Perfect Auto feeder
    Pentair 30" filter (Tagelus) Sand filter/Centruion switchless pump 1.5/.25 HP

  4. Back To Top    #4

    Join Date
    Jun 2008
    Location
    De Pere, WI
    Posts
    37

    Re: Treating cold water

    Conversion formulas:

    Tc = (5/9)*(Tf-32); Tc = temperature in degrees Celsius, Tf = temperature in degrees Fahrenheit
    Tf = (9/5)*Tc+32; Tc = temperature in degrees Celsius, Tf = temperature in degrees Fahrenheit
    Gary
    18 x 38 28800 gals gunite inground;Purex Triton High Rate Sand Filter;1 HP 2 Speed Hayward Tristar Pump; Raypak Heater
    Aquabot Bravo; Goldline Aqua Logic Controller/SWG

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