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Thread: Leaving Spa unattended for 10 days.

  1. Back To Top    #1

    Join Date
    Apr 2009
    Location
    CT
    Posts
    10

    Leaving Spa unattended for 10 days.

    Can anyone give me some tips for leaving my spa unattended for 10 days?

    I use BBB to maintain the spa but will be going on vacation for 10 days.

    I was surprised I couldn't find this topic anywhere.

    Thanks for the help.
    25000 Gallon
    Vinyl Liner
    Inground Pool
    Indoor Pool
    Hayward DE 3600 Filter
    Hayward 1HP SP2607X10 Pump

  2. Back To Top    #2

    Join Date
    Apr 2009
    Location
    CT
    Posts
    10

    Re: Leaving Spa unattended for 10 days.

    A note: My hot tub is indoors. So freezing is not a problem.
    25000 Gallon
    Vinyl Liner
    Inground Pool
    Indoor Pool
    Hayward DE 3600 Filter
    Hayward 1HP SP2607X10 Pump

  3. Back To Top    #3

    Join Date
    May 2007
    Location
    South Central NJ
    Posts
    3,192

    Re: Leaving Spa unattended for 10 days.

    Drain it fully, plumbing and all. Spas need at least weekly attention. Anything beyond and they will become sick. If it gets sick, so will anyone else using it.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  4. Back To Top    #4

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

    Re: Leaving Spa unattended for 10 days.

    If you let the water temperature get a lot lower, even lower than pool temp, then you can shock with chlorine that should last 10 days. My pool at 50ºF loses chlorine at around 25% of the FC level over 2 weeks. You'd have to have your spa water down to at least room temperature (72ºF) to have any hope of the chlorine lasting for 10 days even from shocking. There are some pool services that visit pools once a week, shock to 14 ppm FC and have 4 ppm FC after one week with pools in the 80's and exposed to sunlight (but with 100 ppm CYA), but you wouldn't succeed with this if your spa was kept in the 90's or higher in temp.
    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"

  5. Back To Top    #5

    Join Date
    Apr 2009
    Location
    CT
    Posts
    10

    Re: Leaving Spa unattended for 10 days.

    FYI.

    I dropped the temp to 80. (min temp i can go)

    Put 3 cups of bleach in.

    Put a tarp over the hot tub so I didnt ruin my cover.

    Chlorine was 3.4 when I returned today.
    25000 Gallon
    Vinyl Liner
    Inground Pool
    Indoor Pool
    Hayward DE 3600 Filter
    Hayward 1HP SP2607X10 Pump

  6. Back To Top    #6

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

    Re: Leaving Spa unattended for 10 days.

    Great! I'm glad that worked for you and thanks for reporting back in so we know this is reasonable advice to give to others. 3 cups of 6% bleach in 350 gallons would be 33 ppm FC. Is your spa larger than 350 gallons? Just wondering about your shock level.
    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"

  7. Back To Top    #7

    Re: Leaving Spa unattended for 10 days.

    Question,
    Doesn't having an ozonator also accelerate FC usage? If so and a hot tub is equipped so.....would turning this off during an extended vacation help the situation?
    Sundance Hot Tub 365 gal, acrylic
    (2) 2.5 hp pumps
    ozonator
    Northwest Ohio resident

  8. Back To Top    #8

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

    Re: Leaving Spa unattended for 10 days.

    You are correct. Ozone reacts with chlorine so if you have a way to disconnect the ozonator (say by turning off the UV or CD device) then that will help make the chlorine last longer. An ozonator can be helpful in a high bather-load situation such as a residential spa used every day or two, but isn't so good when there is no bather load because it just increases chlorine demand.
    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"

  9. Back To Top    #9

    Join Date
    Apr 2009
    Location
    CT
    Posts
    10

    Re: Leaving Spa unattended for 10 days.

    250 gallons.

    I have an Ozone generator.

    Hope this helps others. NOTE: I feel the tarp was key in protecting my cover with this high chlorine level.
    25000 Gallon
    Vinyl Liner
    Inground Pool
    Indoor Pool
    Hayward DE 3600 Filter
    Hayward 1HP SP2607X10 Pump

  10. Back To Top    #10

    Join Date
    Jul 2012
    Location
    Herndon, VA
    Posts
    419

    Re: Leaving Spa unattended for 10 days.

    I'm facing a similar situation as the original poster...

    I'm leaving my hot tub for 7 days.

    I've been using chlorine as my sanitizer.

    Just curious if anyone knows for sure....how long does an ozonator typically work for? The spa I have is 8 years old, and I doubt that the ozonator was ever replaced.... I read somewhere that you should expect an ozonator to work for around 3 years. Anyone know?
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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