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Thread: Test results, please advise

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    Test results, please advise

    I just completed the extensive tests on pool water.
    FC-2
    TC-2
    CC-2
    No change when adding R-002 or 3
    PH-7.8 a bit higher then normal
    TA-70
    CH-125
    CYA-30
    Pool is 87- 89 degrees and crystal clear do I really need to add 5# of baking soda (to raise TA) and a but load of calcium chloride (to raise CH) as indicated on chart? I will add acid to bring PH down a bit . All I have been doing is using liquid chlorine daily, a few tablets floating to help keep chlorine up and adding muratic acid as needed.
    Please advice
    Thank-you
    24' round AGP 54" recessed 2' in ground, 2hp 2 stage Hayward pump, 150 sq' filter
    Install on May 28 2014

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    Mod Squad woodyp's Avatar
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    Re: Test results, please advise

    Your calcium level is fine for a vinyl lined pool.

    FC + CC = TC btw.

    Your TA level is fine if your PH is fairly stable.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
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    Smykowski's Avatar
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    Re: Test results, please advise

    Can you retest FC and CC for us?
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
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    Re: Test results, please advise

    And tell us exactly how you're doing the test.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: Test results, please advise

    FC-3
    5 drops R-0001 and 0002
    Then 5 drops R-0003 TC-3
    Test kit then says subtract TC- FC=CC
    24' round AGP 54" recessed 2' in ground, 2hp 2 stage Hayward pump, 150 sq' filter
    Install on May 28 2014

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    Mod Squad jblizzle's Avatar
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    Re: Test results, please advise

    That is the DPD chlorine test, not the recommended FAS-DPD Chlorine Test which is much more accurate.
    Jason, TFP Moderator
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  7. Back To Top    #7

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    Re: Test results, please advise

    It's not the chlorine I'm questioning
    Any comments on the calcium chloride recommended to raise CH
    24' round AGP 54" recessed 2' in ground, 2hp 2 stage Hayward pump, 150 sq' filter
    Install on May 28 2014

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    Re: Test results, please advise

    Your CH is fine. You have a vinyl pool.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    Mod Squad woodyp's Avatar
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    Re: Test results, please advise

    Quote Originally Posted by woodyp View Post
    Your calcium level is fine for a vinyl lined pool.

    FC + CC = TC btw.

    Your TA level is fine if your PH is fairly stable.

    ..............my first post
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    jcowart's Avatar
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    Re: Test results, please advise

    Quote Originally Posted by Moonlite swim View Post
    I just completed the extensive tests on pool water.
    FC-2
    TC-2
    CC-2
    No change when adding R-002 or 3
    PH-7.8 a bit higher then normal
    TA-70
    CH-125
    CYA-30
    Pool is 87- 89 degrees and crystal clear do I really need to add 5# of baking soda (to raise TA) and a but load of calcium chloride (to raise CH) as indicated on chart? I will add acid to bring PH down a bit . All I have been doing is using liquid chlorine daily, a few tablets floating to help keep chlorine up and adding muratic acid as needed.
    Please advice
    Thank-you
    Your FC is the lowest we recommend based off your CYA. We use a ratio for the FC/CYA. The higher the CYA is the higher the FC needs to be. With CYA at 30 your min is 2. Most pools see an average of 2ppm a day loss so a target of 4 to 5 is your best bet. Your TA should be fine at 70, at least for now. If you have wild swings with your pH then you can make a small adjustment with your TA. The TA is a buffer for your pH. You have a vinyl pool so calcium is really not needed. TFP recommends at least 50 and your already past that. Watch out for the pucks. They add both chlorine and CYA. For your pool that would be a little over 2ppm per 8oz puck. I also see you have the DPD test kit. What we recommend is the FAS-DPD kit. It will give you the accuracy with "higher than pool store" chlorine the TFP uses because of the FC/CYA relationship. You can order that kit from tftestkits.net and then have a full test kit. You can have a very clear trouble free pool if you follow advice here, but it's one or the other. TFP advice and pool store advice does not mix.
    17500 gallon Doughboy AGP, Hayward DE filter, waiting for the 1.5hp DB pump to go out.
    Learn to take the advice here and be trouble free or use the pool store's advice. "You can't do both and get very far"

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    Administrator Leebo's Avatar
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    Re: Test results, please advise

    Moonlite,

    Can you please point us to what chart you are referring to? The Calcium level in vinyl pools does not matter at all......do not add ANY to match ANY level. Ignore it all together and pretend it doesn't exist. Your TA level works to help control your pH level. As long as you don't have any wild pH swings then I wouldn't worry about increasing your TA level at all. The only number that jumps out to me is your CYA level. Bumping that number up to 40ish will help you out in the long run by reducing the amount of chlorine the sun consumes per day.

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