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Thread: Pool Open - first water test

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    steinholder's Avatar
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    Pool Open - first water test

    I opened my pool on 3-31-12 and have started adding DiChlor (I have a 5 pak) and PolyQuat Algaecide. I received my TF-100 test kit and results will follow. I plan to work with the calculator some more but wanted a little advice because the water is a little cloudy after very little kid swimming. We also just upgraded to a 2500gph Intex pump/filter. I know that as soon as my CYA comes up I will need to switch to liquid chlorine, I have that ready. Thanks in advance, you are a very helpful group.

    pH 7.2
    FC 16
    CYA less than 20
    CC 0
    CH 150
    TA 70
    22'x52" AG Ultra Frame Intex - 12,500 gal (47K liter)
    Manual Liquid Chlorine - 1HP 100# Hayward sand filter
    Lots of sun, trees, pollen & wind - 50ppm Borates
    4nd season grateful TFP fan

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    Mod Squad jblizzle's Avatar
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    Re: Pool Open - first water test

    First thing I see is that your FC is pretty high for a CYA of 20 ... not sure swimming is a good idea above a FC shock level of 10 if your CYA is indeed 20 (at least you realize it is going to rise with the use of the DiChlor).

    Have you calculated how much your CYA is going to rise with each pack? Are they 1 lb bags:
    Each will raise FC by 11, CYA by 10!!! and lower pH by 0.42!!!

    May want to add borax with each bag to counter the pH drop and maybe not use all 5 bags or your CYA may get high.

    Since you are cloudy, it may be a good idea to do an overnight chlorine loss test to determine if anything is using your FC when the sun is not out.

    If you see a loss > 1ppm you may want to go through the shock process (using bleach) so you are good to go as the weather warms up.

    EDIT: And there is no need to use the Algaecide ... return it if you can.
    Jason, TFP Moderator
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    steinholder's Avatar
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    Re: Pool Open - first water test

    I have two bags of DiChlor left, I will chill out on adding due to the higher FC numbers. I am still pretty overwhelmed at this point, want to get the CYA up and let is settle. I will temper the DiChlor with Borax, I added some last night as I want to get the pH up off of 7.2

    Thanks for your quick advice!

    Bill
    22'x52" AG Ultra Frame Intex - 12,500 gal (47K liter)
    Manual Liquid Chlorine - 1HP 100# Hayward sand filter
    Lots of sun, trees, pollen & wind - 50ppm Borates
    4nd season grateful TFP fan

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    steinholder's Avatar
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    Re: Pool Open - first water test

    I have a question.

    As I work with the Pool Calculator and read some about Borates, I see that Borate levels could make pets sick. Should I be testing for Borates, I have added some Borax to raise my pH and I don't want to add too much.

    Lowering the Borate level requires draining water, so can i assume that adding Borax to raise the pH is good practice in the beginning, but not something I should do continually?
    22'x52" AG Ultra Frame Intex - 12,500 gal (47K liter)
    Manual Liquid Chlorine - 1HP 100# Hayward sand filter
    Lots of sun, trees, pollen & wind - 50ppm Borates
    4nd season grateful TFP fan

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    Mod Squad Bama Rambler's Avatar
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    Re: Pool Open - first water test

    There are many discussions about the effects of Borates on pets. It's not really an issue unless the animal gets all of it's drinking water from the pool every day. Search for some of Richard's (Chem Geek) post on the subject.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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