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Thread: Calcium hardness test

  1. Back To Top    #1

    Join Date
    Jun 2009
    Location
    Cincinnati, OH
    Posts
    2

    Calcium hardness test

    I recently found this site when I couldn't get my local pool stores to figure out what was up with my pool. This site has been great. Thanks! I've received my test kit and have a question regarding the calcium hardness test. Do I swirl to mix in between drops or simply keep adding drops until the color changes to blue? If I swirl I get a reading of 350...if no swirling it's closer to 500 !!
    IG, Gunite
    23,000 gallons
    Hayward Super Pump 1.5 HP, Hayward pro-series high rate sand filter - 300 lbs
    sun from 10am - 5pm

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

    Re: Calcium hardness test

    The CH test is tricky.

    You swirl for 20-30 seconds in between drops. The test should take you several minutes to complete properly.
    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
    Jun 2009
    Location
    Cincinnati, OH
    Posts
    2

    Re: Calcium hardness test

    Thanks! Now if I can only get comfortable with the CYA test
    IG, Gunite
    23,000 gallons
    Hayward Super Pump 1.5 HP, Hayward pro-series high rate sand filter - 300 lbs
    sun from 10am - 5pm

  4. Back To Top    #4
    frankthailand's Avatar
    Join Date
    Apr 2008
    Location
    Thailand
    Posts
    152

    Re: Calcium hardness test

    http://www.taylortechnologies.com/Chemi ... ntentID=44

    Try this link for some info on the CYA test.

    happy swims
    Frank
    Hello all from the land of smiles. Thailand. 5mx9mx1.5 63000L 16300 gall, pebbletex,
    pentair 1hp whisperflow, tagelus TA60 SF, swg monarch esc24 {a bit small for the tropics} 3 returns, 1 skimmer, 2 astral 100watt lights. Planned and built by me
    an AUSSIE expat living thailand for 18 years.

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