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Thread: Third Year working on this pool chemistry

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    Third Year working on this pool chemistry

    Left pool store today...I know I need my own kit. I had one with sticks and ran out. I need to get one.

    Here are my readings:
    CH 0
    TC 3
    FC 3
    PH 7.6
    TA 100
    CYA 0
    salt 3200

    The pool is clear

    Her instructions: add 10 lbs Sea Cal 5 lbs at a time wait 2 hours between

    Add 6lbs ALK

    wait 1 to 2 hours

    Add 3 lbs PH minus

    What?????? Total mess to me! I added 5 lbs of Sea Cal that she gave me because I now realize I need harder water.

    I also added 1 gallon of Stabilizer.

    Now what?? I never seem to be able to hold the stablilizer which in turn leads to me not being able to hold chlorine unless I run the SWG at 100%.
    I do run the heater 90-92 degrees when I swim
    Help
    16 x 32 rectangular, 21K,IGvinyl, 1.5HP Sand Dollar Pentair superflo high performance pump, Pentair IC20 intellichlor chlorine generator, LED intellibrite 5g light, Raypak Heater 335,000 BTU

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    Mod Squad jblizzle's Avatar
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    Re: Third Year working on this pool chemistry

    Unfortunately, all that is a waste of money.

    You do not need CH in a vinyl pool (although I doubt you are really 0).
    The TA is fine if not a little higher than we would recommend
    The pH is fine.

    The CYA actually may have been a good idea.

    BTW, we do not trust pool store testing any more than test strip junk. Invest in one of the Recommended Test Kits and post up the results and THEN we can offer advice.
    Jason, TFP Moderator
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    Richard320's Avatar
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    Re: Third Year working on this pool chemistry

    If (huge if) you trust the pool store readings, your pH is great. TA is actually slightly high, so adding 6 lbs of repackaged overpriced baking soda is unnecessary. Since the pH is already good and you won't need to raise alkalinity, you won't need to lower pH. Scratch the pH minus. You have a vinyl-lined pool. You don't need any Calcium. Period. There is no plaster to leach it out of, so no need to maintain a minimum to prevent it. In fact, Calcium can leave deposits on the SWG plates, so lower is better. Scratch the Sea-Cal, too. All I see that you needed was stabilizer. And when that starts showing, you'll need to raise the FC level to match. Pool School - Chlorine / CYA Chart

    Those savings right there could have more than paid for a proper test kit.

    How do you lose CYA? Have you had torrential rains? Did you drain it for some reason? The CYA test is the one the pool stores mess up the most. I hope you didn't overshoot.
    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!

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    Re: Third Year working on this pool chemistry

    Thanks, that is what I thought. I only bought the CH 5 lb bag and did add it. On the pool chemistry page it said I should be between 50-300 for a vinyl pool.

    I added the stabilizer too. I am trying to understand the chemistry page. What is it that you recommend to use to stabilize? It costs me 31.00/gallon at the pool store!

    - - - Updated - - -

    I am headed to buy my own test kit now. Thank you for your help. I knew she was an idiot!!! Did I ruin anything adding the 5 lb bag of Sea Cal? And yes we had horrible rains the past 2 weeks, and 85mph wind gusts. They thought it was a tornado at first.

    - - - Updated - - -

    The girl at the pool store said if my pool was at 0 hardness it would ruin my pool heater.
    16 x 32 rectangular, 21K,IGvinyl, 1.5HP Sand Dollar Pentair superflo high performance pump, Pentair IC20 intellichlor chlorine generator, LED intellibrite 5g light, Raypak Heater 335,000 BTU

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    epro05's Avatar
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    Re: Third Year working on this pool chemistry

    What the heck is Sea Cal. I googled it and got no relevant hits.
    27,500 gallon in ground gunite/plaster (1995). Attached Spa with fountain, spillway, and 2 lion heads streaming into the pool. Hayward pump and AO Smith UST1152 1.5 hp motor (single speed). Hayward 60 sq ft DE Filter (Model DE-6000). Kreepy Krauly cleaner.

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    Re: Third Year working on this pool chemistry

    That is what they gave me to raise the calcium hardness. The bag says Calcium Chloride.
    16 x 32 rectangular, 21K,IGvinyl, 1.5HP Sand Dollar Pentair superflo high performance pump, Pentair IC20 intellichlor chlorine generator, LED intellibrite 5g light, Raypak Heater 335,000 BTU

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    epro05's Avatar
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    Re: Third Year working on this pool chemistry

    Thanks. When you get your test kit, I think you will find that their CH reading of zero was totally incorrect. And you will realize that their testing service was worth exactly what you paid for it (zero).

    I think you will need to buy your test kit online. Local stores kits generally do not include the FAS-DPD test for chlorine, and you really need that one included.

    The TF-100 from tftestkits.net is your best value. And the Speed Stir, also offered on that site is wonderful. You would not regret getting it.
    27,500 gallon in ground gunite/plaster (1995). Attached Spa with fountain, spillway, and 2 lion heads streaming into the pool. Hayward pump and AO Smith UST1152 1.5 hp motor (single speed). Hayward 60 sq ft DE Filter (Model DE-6000). Kreepy Krauly cleaner.

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    Mod Squad jblizzle's Avatar
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    Re: Third Year working on this pool chemistry

    Do not try to find a kit locally, you will need to order it online.

    You can get the granular stabilizer at Walmart ... 4 pounds for around $16 I think. The liquid stuff is WAY overpriced.

    Are you using PoolMath?

    Start with these:
    ABCs of Water Chemistry
    Recommended Pool Chemicals
    How to Chlorinate Your Pool
    Water Balance for SWGs
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Third Year working on this pool chemistry

    Thanks, I have used pool Math in the past. I am still trying to understand it. It says my pool would be 23,000 gallons. I was guesstimating from what the pool store says every time I am there. Thanks about the Walmart.

    - - - Updated - - -

    Thanks
    16 x 32 rectangular, 21K,IGvinyl, 1.5HP Sand Dollar Pentair superflo high performance pump, Pentair IC20 intellichlor chlorine generator, LED intellibrite 5g light, Raypak Heater 335,000 BTU

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    Mod Squad jblizzle's Avatar
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    Re: Third Year working on this pool chemistry

    It is either called "Conditioner" or "Stabilizer" ... should be near 100% cyanuric acid.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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