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Thread: High CH levels

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    Join Date
    May 2010
    Location
    Yuma AZ
    Posts
    67

    High CH levels

    This is my first post but certainly not my first visit to the forum.

    Using the Taylor K2006 tester these are my test results. Since this is my first time using a really good testing kit I decided to take a sample to the pool store to verify my results. According to the pool calculator I need to drain over 80% of my pool water?

    My water looks clear but I do have some small areas of light green visible algae along the walls. I started using the BBB method about a month ago but I seemed to have missed the part about not needing to shock the pool anymore. I have been using Dry-tec as a shock about once a week using a total of two 1lb bags. I now understand that this shock is 68% Calcium Hypochlorite.

    What course of action should Use to correct this problem?
    I have the attached spa drained in order to change out the SAL bulbs.
    I also have a Solar-Chlor Chlorine Generator.


    FC - 2
    CC - 0
    pH - 7.4
    TA - 100
    CH - 1000 Taylor (1300 leslies)
    CYA -100 Taylor (100+ leslies)
    Salt -5200
    10,000 gallons IG Freeform, 8ft raised spa,pebble finish
    FNS 60 Sqft DE Filter,2HP Whisperflow for Pool/Spa filtering
    2HP Whisperflow for Spa jets
    1HP Whisperflow for Waterfall
    Master Temp 400,000 Btu Heater

  2. Back To Top    #2
    Richard320's Avatar
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    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: High CH levels

    You have two choices: Drain & refill or reverse osmosis. R/O may not be available in your area, which leaves you with one choice. You'll also lose that excessive CYA in the process. Then you can shock (with liquid chlorine) to kill any algae remaining. Right now the CYA is so high you'll spend more on chlorine to shock than you will on a pool's worth of water.

    Once you get things balanced, it's pretty easy to maintain things.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  3. Back To Top    #3

    Join Date
    May 2010
    Location
    Yuma AZ
    Posts
    67

    Re: High CH levels

    In the process of draining pool and spa. What are your thoughts on the refill water as far as using water from my water softener? I have a hose spiget on my softener which i can run to the pool.
    should I use this or regular tap water. The water source is city supplied but almost everyone here has a home water softener.
    10,000 gallons IG Freeform, 8ft raised spa,pebble finish
    FNS 60 Sqft DE Filter,2HP Whisperflow for Pool/Spa filtering
    2HP Whisperflow for Spa jets
    1HP Whisperflow for Waterfall
    Master Temp 400,000 Btu Heater

  4. Back To Top    #4
    dmanb2b's Avatar
    Join Date
    Apr 2009
    Location
    NY
    Posts
    3,728

    Re: High CH levels

    Unfortunately home water softners do not have the capacity to fill a pool. It will help some but after a while...before the softner regenerates, your just pushing through plaon tap water...I'm thinking most softners are good for 2-300 gals a day. What is your fill water CH?
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

  5. Back To Top    #5

    Join Date
    May 2010
    Location
    Yuma AZ
    Posts
    67

    Re: High CH levels

    Fill water reading CH-220. Started refilling tonight. I will post a full set of readings once fill is complete.
    10,000 gallons IG Freeform, 8ft raised spa,pebble finish
    FNS 60 Sqft DE Filter,2HP Whisperflow for Pool/Spa filtering
    2HP Whisperflow for Spa jets
    1HP Whisperflow for Waterfall
    Master Temp 400,000 Btu Heater

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