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Thread: question about antifreeze

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    question about antifreeze

    We just used a new pool company to close our pool. They did it totally different than the last company by blowing out the lines and using very little antifreeze. The previous company charged us a fortune and did not blow out the lines. Instead they filled everything with about 85 gallons of antifreeze. In the spring when they opened our pool they flushed all of the antifreeze directly into the pool water and told us that was fine to do. The new company told me that is actually very bad for the water. Any opinions on the impact of all that antifreeze in the water?
    18x36 ft
    19,000 gal IG vinyl
    Sand filter Tagelus 24"
    1HP Whisper Flo Pump

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    swimu's Avatar
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    Re: question about antifreeze

    It's much better to blow out the lines than to use all that Anti-freeze, plus it's cheaper. Also, if they use a non-toxic chemical it should be safe. However, you should try to avoid adding those chemicals to the pool if you don't have to.
    Matt Giovanisci

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    Re: question about antifreeze

    #1 welcome to TFP swimu!! (I just gave your site a quick view and you seem to have the right idea - if you need any help with the questions you get, simply ask them here and we'll help - as long as you cross reference this site :P )

    jm, Matthew is right on in his assessment of blowing out the lines and a little antifreeze being preferable to flooding the lines with the AF! It's fine to add 85 gal. of pool antifreeze to a 19,000 gal, pool - but I've always been of the mind that you simply don't add anything to the pool water that you don't have to A couple of well distributed gal., into already blown out lines, of AF is a 'drop in the bucket' and OK to do, but with 85 gallons, I'd try to keep the majority of it out of the pool.

    Just my $.02
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

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    Re: question about antifreeze

    I don't use it at all unless the plumbing is screwed up or the customer insists.

    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.

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    Re: question about antifreeze

    We have done fine without it since 1946. Just lucky, I guess.
    Current: 28,000G 18'x36' I/G AnthonySylvan Plaster; Waterway 60 sq.ft. DE Filter; 1.0hp x 1.65 SF Two-Speed (B2982) WhisperFlo; 2004-Present
    Previous: 40,000G 20'x40' I/G Koven unlined WWII salvage 5/8" marine steel; Lomart Stainless Sand Filter; 3/4hp Hayward SuperPump; 1946-2003 (managed by me from about 1964)
    Ancient Taylor K-2000, upgraded with Taylor CH, TA, and FAS-DPD, and TFT CYA tests.

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    Re: question about antifreeze

    Updated question...part of the reason I asked about the antifreeze in the pool is because the guy who closed the pool also suggested we totally drain the pool and refill with new water because of all of the antifreeze that has been put in our pool over the last 5 years. He claims that we would use less chlorine and have an easier time maintaining sparkly water. Does this make any sense?
    18x36 ft
    19,000 gal IG vinyl
    Sand filter Tagelus 24"
    1HP Whisper Flo Pump

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    dmanb2b's Avatar
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    Re: question about antifreeze

    I think you may know the answer to your question Is your water sparkly or have you noticed increased FC demand, if not don't worry about it If you have I would first think it is a organic issue, rather than antifeeze.
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

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    4JawChuck's Avatar
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    Re: question about antifreeze

    Here is the MSDS for Prestone "RV Antifreeze" for reference, should be representative of most RV type products on the market.

    http://www.shamrockchicago.com/MSDSPrestRVAf.html
    55 Kilolitre in-ground 18'X36' vinyl lined kidney shape, 1HP pump, Jacuzzi 250lb sand filter, RayPak Delta T 200K BTU natural gas heater. New PoolWerks "Blue Diffusion" liner on May 26th-2011
    Avatar is my pool!

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