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Thread: My numbers seeking comments

  1. Back To Top    #1

    Join Date
    May 2007
    Location
    Round Rock, TX
    Posts
    525

    My numbers seeking comments

    FC 5
    CC 0
    TC 5
    PH 7.7
    TA 80
    CH 575
    CYA 50

    The only thing I think I need to do is increase my CYA to ~70 for my AutoPilot. Does that sound about right?

    BTW I've had the AutoPilot for ~1 month now and absolutely love it! I have to add acid every two week, but that is not bad.

    thanks,
    dave
    15,500 gal, inground gunite pool with 7 ft spa, 2 speed pump 2hp/.33hp, 3/4 hp booster pump, Intermatic P1353 timer, AutoPilot SC-48, Sand filter with ZeoBest, Heater, that I never use . . .

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    Your numbers look fairly good. Your CH is a little high, so you don't want to let the PH get up to 8.0 (or above) or you could potentially have scaling. Keeping the PH below 8.0 is a good idea anyway, so not a big deal. Other than that, raise the CYA just a little and you will be all set.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Join Date
    May 2007
    Location
    Round Rock, TX
    Posts
    525
    I add acid when PH gets to 7.8. Looks like next week will be time. It is about every 2-3 weeks.

    Unfortionately, the water is really hard here. My CH after going through the water filter is 200. I will always be fighting this

    I puts some tricholr tab in to a floater to raise the CYA as they are left over from before my SWG.

    thanks,
    dave
    15,500 gal, inground gunite pool with 7 ft spa, 2 speed pump 2hp/.33hp, 3/4 hp booster pump, Intermatic P1353 timer, AutoPilot SC-48, Sand filter with ZeoBest, Heater, that I never use . . .

  4. Back To Top    #4
    Guest
    With your CH as high as it is I would considering dropping the TA to about 60 ppm. Not letting the pH get too high is an excellent idea. One other thing you might want to consider is adding a scale inhibitor such as Jack's Magic Purple Stuff. It might help prevent scale deposts on the cell. Be sure and check the cell on a regular basis for scale!

  5. Back To Top    #5

    Join Date
    May 2007
    Location
    Round Rock, TX
    Posts
    525
    I checked my cell this week as it had been close to a month of operation and it looked just like it did when it was installed. Nothing on it at all. I was surprised, but I intentionally bought the SC48 for my 15k pool so that I could run it on low. Not sure if that makes a difference, but the pricing was not much different. I currently run it on power 1 at 40% for 8 hours each night.

    Thanks for the suggestions!
    15,500 gal, inground gunite pool with 7 ft spa, 2 speed pump 2hp/.33hp, 3/4 hp booster pump, Intermatic P1353 timer, AutoPilot SC-48, Sand filter with ZeoBest, Heater, that I never use . . .

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