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Thread: How much Antifreeze?

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  1. #1
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    Default How much Antifreeze?

    I have an I/G vinyl 25000 gal pool. How much Antifreeze is required in the return/drain lines? New Jersey climate.

  2. #2
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    Default Re: How much Antifreeze?

    I asked the same question on 9/7 and no one replied to me either . . . I bought 6 gallons at Lowe's on Sat. Not sure I'll need it all. I was figuring a gallon per outlet/inlet. (2 skimmers, 2 returns, 1 wall vac line, 1 main drain). I am sure part of it depends on the length & depth of the lines.

    Anyone out there have any comments?

  3. #3
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    Default Re: How much Antifreeze?

    We have a 25000 gallon IG, and we used a total of 5 gallons.
    Why BBB? Because money can't buy happiness, but saving it sure can!

  4. #4
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    Default Re: How much Antifreeze?

    Thanks, Doggie. Was that roughly 1 gallon per inlet/outlet?

  5. #5
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    Default Re: How much Antifreeze?

    2 gallons down the chlorine feeder, which goes to each line, 1 gallon in the skimmer, and 2 gallons in the pump filter basket. My husband says that's most likely more than needed, but better safe than sorry.
    Why BBB? Because money can't buy happiness, but saving it sure can!

  6. #6
    waste is offline PF Support Team Whizbang Spinner waste 3 stars waste 3 stars waste 3 stars
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    Thumbs up Re: How much Antifreeze?

    Sorry if I missed the other ?. As a practical matter, if the pipes are fully evacuated of water, no antifreeze is required. In the same line of thought - if the pipes are not fully evacuated, but run below the frost line, no antifreeze is required. In the real world, it's a good idea to add antifreeze to lines when possible (water clings to pipe surfaces and will eventually find it's lowest level, so having the AF in there can prevent some co$tly problems). How deep a freeze you are likely to encounter depends upon your latitude (mostly), on the bottle it should say the freeze/ burst protection based on % AF to water. So guestimate how much water may be left in the line and add enough AF to compensate for the 'worst case scenario' (Ma Nature provides a record breaking freeze).
    With so many people in so many climates here, that's about the best I can do - but keep in mind, the better (more thoroughly) you blow out the lines, the better chance they have of surviving the winter 'in tact'.
    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 libraries

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