Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 6 of 6

Thread: Calcium Hardness

  1. Back To Top    #1

    Join Date
    Feb 2015
    Location
    Surprise, Az
    Posts
    6

    Calcium Hardness

    Hi guys, I seem to have really hard water, after doing a partial drain and getting my water retested. It seems to have gone up. So I'm going to get my house water tested. But living in AZ we generally have hard water. Is there anything besides finding a company to bring water to me that i can do to lower my calcium.

    Thank you

  2. Back To Top    #2
    Mod Squad Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    17,826

    Re: Calcium Hardness

    Hard water? ..... Surprise! Get it? Yeah, I know. Kind of a lame joke. In any case, yes, some areas in the southwest are notorious for hard water. But here are some simple facts that may help:
    - Test your own water! That's number 1. Use a TF-100 or Taylor K-2006C and use a magnetic speedstir to help you with the reagents during that test. It makes a BIG difference.
    - How are you sanitizing the water? Some products (like Cal-Hypo) use calcium and increase your CH level dramatically.
    - Please update your signature with all of your pool & equipment info. It will help us later.
    - Managing hard water (your CH level) in a pool is done by countering the high CH level with a lower pH & TA level to help reduce the likelihood of scale in the pool. You can learn more about that (your csi level) here at TFP.
    - You can learn more about all of this on the TFP Pool School - Calcium Scaling page.

    If you still have question, please let us know. Thanks for posting.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  3. Back To Top    #3

    Join Date
    Feb 2015
    Location
    Surprise, Az
    Posts
    6

    Re: Calcium Hardness

    Ill update my sig when i get home, but quickly i have a salt water pool with a cartridge filter, pebble finish. Had it for about 4 years and this is the first year Ch has been an issue. Is it something to really worry about, or as long as i keep the ph in check am i ok?

    Thanks

  4. Back To Top    #4
    Mod Squad Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    17,826

    Re: Calcium Hardness

    Is it something to really worry about, or as long as i keep the ph in check am i ok?
    Just a typical scenario I'm afraid in your area, but certainly not hopeless. You probably experience a lot of evaporation throughout the year. As such, your fill water probably has a relatively healthy CH content that's contributing to the already elevated CH level. Still, it's not uncommon for some in your area to have a CH of 1,000 or so, and they still manage their existing water by countering it with a lower pH/TA to keep that "CSI" level is a good range. You can do it as well. Home testing is certainly your best bet to monitor that CH level (and all others) as often as needed.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  5. Back To Top    #5

    Join Date
    Feb 2015
    Location
    Surprise, Az
    Posts
    6

    Re: Calcium Hardness

    Thanks for the advice. I will reading up on home testing as soon as I home. I like the idea because it keeps me out of the pool store.

  6. Back To Top    #6
    JoyfulNoise's Avatar
    Join Date
    May 2015
    Location
    Tucson, AZ
    Posts
    14,225

    Re: Calcium Hardness

    I’ll be draining in a few weeks since my CH is now up to 1400ppm. Water was perfectly manageable all the way up to 1200ppm. My fill water cones out of the tap with 200ppm CH and I do not use a pool cover.

    The only options for CH control is to install a water softener in your home and get a pipe routed to your autofill or a hose bib installed you can use for topping off. After that, you can try to capture rain water off your roof and use that to help reduce CH as rain water has zero calcium in it.

    Desert life with a pool unfortunately....
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •