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Thread: ozonator?

  1. Back To Top    #1

    Join Date
    May 2009
    Location
    Trenton NJ
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    ozonator?

    Can someone explain how this works? Do I need less sanitizer? Is there any maintenance with this device?

    Thanks!
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

  2. Back To Top    #2

    Join Date
    Mar 2007
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    San Rafael, CA USA
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    Re: ozonator?

    An ozonator provides supplemental oxidation to get rid of bather waste and also to kill some pathogens faster (but they have to find their way to the ozonator via circulation and cannot be stuck on spa surfaces). If you use the spa every day, then having an ozonator may cut your chlorine usage roughly in half (if you are using bromine instead, it will cut that usage down as well).

    On the other hand, if you don't use the spa frequently, then an ozonator will increase chlorine demand, perhaps doubling it (either from oxidizing chlorine to chlorate or having faster chlorine outgassing) so instead of losing 25% of FC each day when the spa is not in use you would lose 50% each day with an ozonator.
    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 2009
    Location
    Trenton NJ
    Posts
    497

    Re: ozonator?

    We use our hot tub 1-2 times per week so I guess it would not benefit us. Is there a way of disconnecting it?
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

  4. Back To Top    #4

    Re: ozonator?

    Why not just leave it for added protection?
    1971 San Juan Fiberglass pool 12,000 gallons
    New Pentair Whisperflow 1hp
    New Pentair FNS DE filter 64sq
    All 1.5" piping and no heater
    1 skimmer, 1 main drain, and 2 returns

  5. Back To Top    #5

    Join Date
    Mar 2007
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    12,082

    Re: ozonator?

    The extra chlorine demand would be having 2 ppm FC per day instead of 1 ppm FC per day assuming you were trying to keep 4 ppm FC as your chlorine level. However, it might not be as bad as I describe since it depends on the strength of your ozonator so you might as well try things out for a while to see how it goes.
    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"

  6. Back To Top    #6

    Re: ozonator?

    My tub has an ozonator. I would also recommend leaving it hooked up. My FC consumption is minimal (see attached log) and our usage is about what yours is. However, with that being said when or if it quits working, I probably will not replace it since the BBB method has served me well ever since I learned about it.
    Barry
    Attached Files Attached Files
    Sundance Hot Tub 365 gal, acrylic
    (2) 2.5 hp pumps
    ozonator
    Northwest Ohio resident

  7. Back To Top    #7

    Re: ozonator?

    I'm a new tub owner - one week today - we have an ozonator, and I'd say over the past week I've put about 6 tsps of chlorine granuals in our tub and I've not been able to get any FC reading on my test strips. Last night I tested after we got out - the total chlorine was higher than the free chlorine so I put in 2 tsp of non-chlorine shock as suggested by the book that came with my test strip kit. I read on another forum that ozonators use up FC - how much chlorine do I need to get a FC reading in the safe range?

    My tub is about 470 gallons.

  8. Back To Top    #8
    linen's Avatar
    Join Date
    Jul 2010
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    Twin Cities, MN
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    Re: ozonator?

    Hey waterwriter! It would help us to help you if you keep your posts to one thread (the other one) : http://www.troublefreepool.com/could...lp-t41846.html
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  9. Back To Top    #9

    Re: ozonator?

    Just about to buy a softub and I can have the option for the ozone unit, I'm almost certain I will have it installed and it looks like I can turn it on and off as required. In most cases would use say it's a good idea? I have never owned a hot tub before so really unsure how this all works. They will install the softub and show us how to use it and supply a starter kit of chemicals to get us going.
    Softub: 300 Euro in Anthracite and Pearl with ozone

  10. Back To Top    #10

    Join Date
    Mar 2007
    Location
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    Re: ozonator?

    Ozonators are good if you are using the spa every day or two. They aren't good if you are using chlorine and only use the spa infrequently, once or twice a week or less. The reason is that while ozone oxidizes bather waste, it also oxidizes chlorine so it decreases chlorine demand from bather waste while increasing daily loss in between soaks. Which one wins out depends on your bather load (how many bathers for how long how often).
    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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