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Thread: inSPAration Aromatherapy (Proplylene Glycol) good? bad? Ok?

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    jv92red's Avatar
    Join Date
    Mar 2013

    inSPAration Aromatherapy (Proplylene Glycol) good? bad? Ok?

    We've been using inSPAration spa and bath scents for a while now in our spa (pool/spa combo). I have not noticed any adverse effects whether it be skin or water balance or sanitation issues. But I wanted to know about the main ingredient being Proplylene Glycol, does this stuff build up over time without splash out like Salt/CYA/Calcium? If so, would there be adverse effects from using this stuff over time if the level of Proplylene Glycol builds higher and higher? Or does it get used up or burn off to where there won't be any concerns? There is no test kit for Proplylene Glycol that I have seen or is there?

    From the research I have done on the internet about the safety of Proplylene Glycol, it looks like it's fine in pool/spa water as long as I don't drink it. I also have Borates in my pool but by setting a 50ppm borate level and no source of adders (I have generally rising PH so never use Borax to counter low PH) there is no way of the Borate level of getting into dangerous levels but for Proplylene Glycol, with no way to test and if it builds should I be worried about this? By the way, the FDA includes Propylene Glycol on its Generally Recognized As Safe (GRAS) list and the World Health Organization also considers it as safe for use.
    15'x35' IG 16,500 gallons w/attached raised 18" spa continuous coping w/underneath spill and ledger stone wrapped, NPT mini pebble aqua blue w/2x pigment & abalone shell finish, 2"x24" travertine coping, 3x Jandy Color LED lights (2 in pool), Jandy Flo Pro 2HP VS pump, Jandy LXI (low NOx) 400K BTU heater, Jandy CL460 cartridge filter, Jandy AquaPure Ei SWG, Jandy Z4 automation with iAqualink and remote poolside PDA, 1,300 sqft Belgard Catalina paver deck with drainage, fire pit that matches the spa with travertine coping and wrapped in ledger stone, Elitewood insulated patio cover, Vinyl gates, back vinyl fence coming soon...

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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: inSPAration Aromatherapy (Proplylene Glycol) good? bad? Ok?

    Propylene glycol is used in other climates to winterize pools. The small amounts you're adding will probably not affect the chlorine loss to any noticeable amount. But it could form toxic substances: Antifreeze and Chlorine
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Join Date
    Mar 2007
    San Rafael, CA USA

    Re: inSPAration Aromatherapy (Proplylene Glycol) good? bad? Ok?

    I think we concluded that it creates some chlorine demand but doesn't result in the bad disinfection by-products I was worried about, though we only had two situations where I had chemical analysis done on the water. As Richard points out, you're adding a very small amount so it's unlikely to be a problem.
    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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