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Thread: Antifreeze

  1. Back To Top    #1

    Join Date
    Aug 2008
    Location
    Southwest New Hampshire
    Posts
    52

    Antifreeze

    We will be lowering our pool level below all returns. With 2 skimmers and 4 return lines we have about 250 ft of lines to fill. Looks like it will be about 25 gallons @ $4.50 a pop. Is it imperative to add antifreeze in the returns? I suppose, unless there is pretty good consensus for not adding antifreeze to the returns I will pony up for peace of mind.
    Andrew
    25,000 gal IG Vinyl - PoolPilot SC48 SWG - Sta-Rite 1HP/System3 CF - AquaCal HeatPump - TF-100

  2. Back To Top    #2
    reindeerboy's Avatar
    Join Date
    May 2008
    Location
    Jamestown, ND
    Posts
    514

    Re: Antifreeze

    Depends on how cold. In our case, it gets cold here in ND. I mean really cold, so its not a question here. Where you are at, I would assume it also gets cold, so my 2 cents would be to add it. I have 1 skimmer and 2 return lines and I used 4 gallons. Well worth it in my book.

    Thats my input anyway.
    Chad R.

    POOL SIZE: 16 x 32' Vinyl lined pool. 22,000 gallons. 8' deep. 2009 Hayward 1.5 HP Super Pump. Hayward S310S 30" 500 lb Sand filter. 1 skimmer and 2 returns. Solar Blanket.

    Pics of my pool: http://s307.photobucket.com/albums/nn312/reindeerboy/

  3. Back To Top    #3

    Join Date
    Mar 2007
    Location
    Coastalish 'down easter'
    Posts
    4,160

    Re: Antifreeze

    I've said this before, elsewhere. but I don't mind repeating my advice a few times

    If you have a completely waterless line (ie. you blow ALL the water out of it), you don't need to add antifreeze - no water = no ice expansion = no burst pipes However, it's ~ impossible to blow ALL the water out of a line (water clings to the sides of the pipe and will drain back down to the lowest point). As long as the pipe isn't full at that point, the ice has room enough to expand without harming the line. I would add some anti-freeze to any line I could just to insure that the little bit of water won't cause a problem. I see NO reason to completely fill the lines with antifreeze! As long as the lowest point where the water will collect is below the frostline, you don't need antifreeze, but it's probably better to err on the side of caution! I'd add ~ 1/2 gallon to each line I could just as a little insurance

    Consider what I've said here and decide to do it as you feel will be best for you/ your pool 8)
    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!)

  4. Back To Top    #4

    Join Date
    Aug 2008
    Location
    Southwest New Hampshire
    Posts
    52

    Re: Antifreeze

    It does get cold here...not quite ND brutal... but we usually have about 18-24" ice on the skating pond.
    Sounds like good advise, waste. I think I have read your posts on this...just a little slow sometimes
    I understand if the lines are blown out, there is little chance of expansion...expanding nothing seems pretty harmless. I guess my concern was if water level rose (we have mesh safety cover) and then a return line plug was somehow compromised and the line filled. Think I'll put a 1/2 gallon in the shorter runs and a full gallon in the longer runs and be done with it.
    Andrew
    25,000 gal IG Vinyl - PoolPilot SC48 SWG - Sta-Rite 1HP/System3 CF - AquaCal HeatPump - TF-100

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