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Thread: Calcium Hardness test is perplexing, moving tub

  1. Back To Top    #1

    Join Date
    Jul 2015
    South County, Rhode Island

    Question Calcium Hardness test is perplexing, moving tub

    Hello Everyone, I wish to ask for help in understanding my calcium hardness test. I am following your instructions and am using the Taylor K2106 kit.
    I have done the calcium hardness test twice. The first time, I followed the instructions under the lid and the test turned purple, not red to indicate any hardness present. I then read page 12 of the detailed manual of the kit and started the test again, using their recommendation of adding reagent to the sample then conducting the test per instructions. This time, the sample turned blue. No red this time either.

    Am I to understand that I have no calcium whatsoever? I must say, I am taking this water sample from the tap. Not the tub.

    Tub was ordered 7/1 and has arrived at the dealer yesterday! I have to drive 2 hours to pick it up so if anyone has any advice on transporting it on a flatbed pickup, I would gladly listen. Thanks in advance for your help on both issues!
    2015 Bullfrog 131 180 gal Spa Indoor, TFP bromine fed, Taylor K-2106
    2012 2500 gal. Round vinyl AG Pool, Hayward Easy Clear Filter System, chlorine
    1994 Rubbermaid 175 gal horse tub, still looking for advice on algae problem.

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Calcium Hardness test is perplexing, moving tub

    You are correct that you have zero CH. I've never had an CH in my water.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  3. Back To Top    #3
    BoDarville's Avatar
    Join Date
    Jun 2012
    DFW, Texas

    Re: Calcium Hardness test is perplexing, moving tub

    Yep, those test results indicate no calcium. If you have no calcium in your tap water, consider yourself lucky and the envy of most other pool owners in the country, especially those in the SW US.
    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
    A good test kit is an investment, not an expense.

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