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Thread: Swg spa. No set timer

  1. Back To Top    #1

    Join Date
    May 2013
    Location
    Chandler Arizona
    Posts
    78

    Swg spa. No set timer

    I have SWG portable intex bubble/jet spa. I usually turn on swg sanitation for 5 to 8 hours after soak. Question is: If I leave town for a week. Can I supplement with bromine tabs? Since I can't manually turn on swg.
    Intex Ultra Frame 18 x 9 x 52 rectangle. 4545 Gallons.
    12 in Krystal Clear™ Sand Filter Pump w/ GFCI.
    Krystal Clear Saltwater System™ w/ GFCI.
    TF-100 Taylor testing.
    K-1000 Taylor testing.

  2. Back To Top    #2

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: Swg spa. No set timer

    If you do, then your spa will become a bromine spa until your next water change. You can certainly do that if you want to -- up to you. Or if you want to keep it a chlorine spa you can have your SWG on for a short time each day to maintain a chlorine level, though it sounds like maybe you don't have a timer for the SWG and it is turned on only manually?
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  3. Back To Top    #3

    Join Date
    May 2013
    Location
    Chandler Arizona
    Posts
    78

    Re: Swg spa. No set timer

    yes that's my understanding, it wont turn on on its own. I was told I could use bromine tabs to supplement? I guess not. Can I use chlorine tabs?
    Intex Ultra Frame 18 x 9 x 52 rectangle. 4545 Gallons.
    12 in Krystal Clear™ Sand Filter Pump w/ GFCI.
    Krystal Clear Saltwater System™ w/ GFCI.
    TF-100 Taylor testing.
    K-1000 Taylor testing.

  4. Back To Top    #4

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: Swg spa. No set timer

    Technically, spa manufacturers say not to use Trichlor tabs in a spa. The reason is that with the hot water they dissolve too quickly unless you have a special feeder and they are acidic. You'd have to watch the chemistry and that's not something you can do while you are away. Probably the best thing to do is to elevate the chlorine level and lower the spa temperature. Cooler water will use up chlorine more slowly. Normal daily chlorine demand in a hotter spa is 25% (with no ozonator) but if you get the temperature down the loss rate may be only 15% per day so that 10 ppm FC will be 10*(0.85^7) = 3.2 ppm FC when you return. This assumes the spa is covered and not exposed to sunlight.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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