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Thread: Water clarity and feel

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    DonW's Avatar
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    Water clarity and feel

    I was so impressed with the water clarity and feel after shocking with bleach for the first time that I have to give a "shout out" to Trouble Free Pool! I do believe that my pool was never shocked correctly using trichlor shock, as it has NEVER looked like it does now. I shocked 2 days ago with 7 gallons of bleach (CYA is in the neighborhood of 80, waiting for more evaporation to do a partial drain-down), and my levels 2 days later are FC 11.5, CC.5, TC 12. I swam in it last night and the feel of the water has dramatically changed from a dry feel to a softened, luxurious feel. Thanks to everyone past and present for input, solutions, problems & work-arounds. TFP rocks!!!!!
    18' x 33' AGP
    16,715 gal.
    200 lb. Sand Filter w/Hayward PowerFlo MATRIX 1.5 H.P. 2 Spd. pump
    Stenner Injection Pump System

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    reebok's Avatar
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    Re: Water clarity and feel

    if you think that's good, try adding borates when you get everything set and under control.
    so-you-want-to-add-borates-to-your-pool-why-and-how-t4921.html
    16x32 21,000 gallon in-ground exposed aggregate, 1.5hp pump, 120 sqft catridge filter, birdcage, solar panels, aquavac tigershark qc robot.

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    dmanb2b's Avatar
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    Re: Water clarity and feel

    yeah...I must say this is a pretty cool forum

    On your CYA...evaporation will not reduce your CYA level...evaporation just concentrates the CYA even further and you end up diluting it when you top off....ie no net decrease.

    You want to partially drain the high CYA water and then fill...CYA does not evaporate
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

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    reebok's Avatar
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    Re: Water clarity and feel

    I think he's just saying it will be less water to drain if the water level is already lower (based on previous posts). I don't think it will make much difference though.
    16x32 21,000 gallon in-ground exposed aggregate, 1.5hp pump, 120 sqft catridge filter, birdcage, solar panels, aquavac tigershark qc robot.

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    DonW's Avatar
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    Re: Water clarity and feel

    No I am actually waiting for a little more evaporation to occur, and then I'm going to do a partial drain-down and refill in the hopes that my CYA will go down a bit. I just hate to dump all that beautiful water out! And reebok I will definitely look into borates when all the issues in my pool have been worked out. Thank you for the tip!
    18' x 33' AGP
    16,715 gal.
    200 lb. Sand Filter w/Hayward PowerFlo MATRIX 1.5 H.P. 2 Spd. pump
    Stenner Injection Pump System

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    dmanb2b's Avatar
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    Re: Water clarity and feel

    Quote Originally Posted by reebok
    I think he's just saying it will be less water to drain if the water level is already lower (based on previous posts). I don't think it will make much difference though.

    The lower the amount of water you physically drain vs evaparation, the less CYA dilution will occur...that's my point

    It may be less water to drain, but the water used to replace the evaporated water will not help the OP's CYA goal.
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

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    Re: Water clarity and feel

    If you have 10k gallons and drain 1k, you have 9000/10000 = 90% of the original CYA remaining.

    If you evaporate 500, you still have the same original CYA just in 9500 gallons.
    If you then drain another 500 (same total water lost), you have 9000/9500 = 18/19 = ~94.7% of the original CYA remaining. Not as good.

    If you evaporate 500 and then drain another 1k, you have 8500/9500 = 17/19 = 89% of the original CYA remaining. Hardly any better than draining the original 1k.

    So: Letting it evaporate first is unlikely to help much and could actually make the process take longer.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
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