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Thread: Help with Krystal Clear SWG

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    clayp's Avatar
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    Jun 2015
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    Donalsonville/Ga
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    Unhappy Help with Krystal Clear SWG

    Hey guys,.... Working on a 22x52 Intex Ultra Frame AGP.... The system is corroding horribly on the output side of system...The input side looks brand new..(Faulty pump??) ...I have cleaned the bad side twice with vinegar and have it soaking now (3rd time)...It also shuts down for "low salt" error ....Please see salt levels at the bottom..(plenty of salt).. My FC levels have been drastically low according to strips since day one and that's with 2-3 boost cycles...This past Saturday I added 151oz of 8.2% liquid chlorine as instructed by poolmath app..The SWG pump is rated for 12gr/hr and max is for 3,00gph.

    Any suggestions on these would be greatly appreciated....seem to be fighting a losing battle or always chasing..

    I have issues with chemistry in which I'm trying to correct....its all over the place......I know if its not stable other areas will be uncontrollable.
    Levels are

    Store analysis : Strip Test (aquacheck)
    FC.5 Fc 3-5
    pH 7.8 pH 8.4 ( pink ish red on strip )
    TA 135 TA 180 ish (per strip)
    CH 225 stabilizer 30-50 ish
    Stabilizer 30 (added 2.5 lbs last week)
    Salt 3900
    (pool has been open for a month now)


    This morning I added 24 oz of Hydro. acid to lower the pH ( which should lower the TA???) .....
    22'x52" AG Intex Ultra metal Frame
    Krystal Clear Model SF70110 14" .75hp 2,150gph Sand Filter- variable timer
    Krystal Clear Model CG-28669 Salt Water System ( >15,000gal) - variable timer
    Installed 6/04/2015 from well ( 2 days of daylight filling )

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    Mod Squad tim5055's Avatar
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    May 2014
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    Columbia, SC
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    8,497

    Re: Help with Krystal Clear SWG

    Your numbers are probably all over the board because test strips are not to be trusted. Some call them "guess strips" because the numbers are so bad. For now until you sort your SWCG issues out you need to manually chlorinate the pool with bleach.. Use Pool Math to figure out how much you need to add.

    You need to get away from the test strips, so order a TF100. That will give you what you need for a couple of years normal use.

    The only other real option for a test kit is a Taylor K-2006. Be careful comparing prices because the K-2006 comes in sizes, designated by a letter. The basic K-2006 has .75oz bottles. Yo need to get the K-2006-C to get the larger bottles that you want. Even then it is a little short on the reagent & powder for the FAS/DPD test.

    I also have the SpeedStir and Sample Sizer. They speed testing and accuracy.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    clayp's Avatar
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    Jun 2015
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    Donalsonville/Ga
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    Re: Help with Krystal Clear SWG

    I purchased the TF-100 Saturday after reading about it here (delivery will take forever; however tax and shipping was free). I didn't get any of the optional stuff.... Its frustrating trying to figure the strips...I wondered why they give em to ya free with purchase...lol Hopefully after it comes in I can tackle this pH and TA problem....The water is clear looking into pool ( read font on medium sized toys), but once in and underwater its a tid bit cloudy...

    Thanks for the input...glad to know the testkit holds so high regards ...good investment
    22'x52" AG Intex Ultra metal Frame
    Krystal Clear Model SF70110 14" .75hp 2,150gph Sand Filter- variable timer
    Krystal Clear Model CG-28669 Salt Water System ( >15,000gal) - variable timer
    Installed 6/04/2015 from well ( 2 days of daylight filling )

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