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Thread: Question about ph color

  1. Back To Top    #1

    Join Date
    Aug 2009
    Location
    Keene, Texas
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    Question about ph color

    I have not kept up with my spa like I should. I mean, I shock it regularly and the bromine level is okay, but when I checked the ph tonight, the water never did turn red, it was yellow like the bromine color. I redid the test, adding 5 drops of the 0014 to the test kit and it was very yellow. Is this indicative of low ph? should I increase it? Water looks great!

    Aaron

    Morgan Spa - Malibu 375 gallons
    amoses (Aaron)
    Converted from Baquaqoo in the fall of 09. Best thing I ever did!!
    AG, 24 Ft Round, 54" wall, 48" deep, 13,500 gal., TF-100 test kit
    Hi-Flo II 1.5 HP pump, AquaTools High Rate 200# Sand Filter AT3120

  2. Back To Top    #2

    Join Date
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    Cupertino, CA
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    Re: Question about ph color

    Yes, yellow does sound like really low pH. I would use borax to raise the pH; assume it's 6.8 for purposes of figuring out how much. Give it a couple hours after adding before you test pH again.

    What do you use for shocking?
    --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
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

  3. Back To Top    #3

    Join Date
    Aug 2009
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    Keene, Texas
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    Re: Question about ph color

    I use Spa Gaurd products. The shock is "Enhanced Shock". I have never had problemes with my water in my spa so I have never bothered with converting to BBB in it like I did my pool. This is the first time my ph has been low like this. normally it is high rather than low.

    I will get some borax and start raising it up. Thanks.
    amoses (Aaron)
    Converted from Baquaqoo in the fall of 09. Best thing I ever did!!
    AG, 24 Ft Round, 54" wall, 48" deep, 13,500 gal., TF-100 test kit
    Hi-Flo II 1.5 HP pump, AquaTools High Rate 200# Sand Filter AT3120

  4. Back To Top    #4

    Join Date
    Jan 2009
    Location
    Cupertino, CA
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    Re: Question about ph color

    "Enhanced Shock" appears to be basically dichlor, which is acidic; that might be one source of the pH problem. Also continuous use of dichlor will increase CYA which will eventually interfere with the effectiveness of the chlorine. In a bromine spa you don't use all that much chlorine, but eventually I think it would still become a problem. You should be able to use bleach as the chlorine source in a bromine spa, although the quantities would be relatively small.
    --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
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

  5. Back To Top    #5

    Join Date
    Aug 2009
    Location
    Keene, Texas
    Posts
    157

    Re: Question about ph color

    Okay, Thanks.

    They are going to replace some jets today. I think I will drain it and try doing the bbb in it instead. Thanks.
    amoses (Aaron)
    Converted from Baquaqoo in the fall of 09. Best thing I ever did!!
    AG, 24 Ft Round, 54" wall, 48" deep, 13,500 gal., TF-100 test kit
    Hi-Flo II 1.5 HP pump, AquaTools High Rate 200# Sand Filter AT3120

  6. Back To Top    #6

    Join Date
    Jan 2009
    Location
    Cupertino, CA
    Posts
    1,966

    Re: Question about ph color

    My impression is that bromine tends to cost more but require less day-to-day attention. A chlorine spa needs to be checked frequently (ideally every day, at least until you're familiar with its chlorine demand rate). As long as you're able to pay attention to it often enough, chlorine maintenance is pretty easy.
    --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
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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