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Thread: First time using TF-100

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    Join Date
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    San Antonio, TX
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    First time using TF-100

    So here are my readings:
    Ph 7.8
    FC 1
    CC 0
    TC 1
    TA 140
    CH 330
    CYA 85 (down from 200+ we had some months ago)

    So I obviously need a lot of bleach. I'm still trying to find a good supplier for 12% bleach. It's just beginning of swimming season. Should I start by lowering the CYA by draining the pool or should I balance the other stuff first?

    I'm completely new to the bbb and still a little overwhelmed.

    Thanks for the help!
    10k gal, IG plaster+pebble, 4xcartridge 125sf, 2 ton waterfall, built Oct 2011

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    Mod Squad jblizzle's Avatar
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    Re: First time using TF-100

    Definitely replace water to lower the CYA.

    What does the water look like? You will probably want to go through the SLAM process and that is easier with a lower CYA.
    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: First time using TF-100

    Oddly enough the water looks great. We had lowered the cya to 40ish but then were using tabs plus granular shock until I found this site. Just in a couple of months my cya has doubled. Still using tabs but trying to get off them as soon as I get me some bleach.
    10k gal, IG plaster+pebble, 4xcartridge 125sf, 2 ton waterfall, built Oct 2011

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    UnderWaterVanya's Avatar
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    Re: First time using TF-100

    The new concentrated bleach in stores is 8.25% which is pretty good. Just be sure to buy the unscented and plain Jane type. Not splash-less not outdoor etc.


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    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    techguy's Avatar
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    Re: First time using TF-100

    Unless you find 12%, near your home, for a good price, I find the 10% to be the best value. I can get his at any box store for 6.47 to 6.86 for two gallons.

    YMMV
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

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    UnderWaterVanya's Avatar
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    Re: First time using TF-100

    Quote Originally Posted by techguy
    Unless you find 12%, near your home, for a good price, I find the 10% to be the best value. I can get his at any box store for 6.47 to 6.86 for two gallons.

    YMMV
    Here in nc it is very difficult to find liquid chlorine except for bleach - I envy those of you with options. Even pool stores don't carry liquid in my area.

    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    techguy's Avatar
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    Re: First time using TF-100

    Most of the pool stores in my area do not carry 12%, so to get it , I need drive an extra 10 miles. No savings after I do that. So WalMart it is or HD.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

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