Vodka as anti-freeze

Discussion in 'Winterizing' started by northern, Aug 7, 2017.

  1. northern

    northern Active Member

    Jan 17, 2007
    West coast Vancouver to Alaska
    380 Aft Cabin 1989 GPS and Charts by Nobeltec
    Twin 454 strait shaft
    I read an article that one person used vodka as an anti-freeze in their potable water system instead of pink propylene glycol. Said the vodka taste washed out with one fresh tank of water.


    Has any tried this?

    Will the vodka hurt the 12 volt water pump, rubber in the faucets and the water lines in the boat?
  2. paulswagelock

    paulswagelock Member

    Oct 25, 2010
    2008 270 SLX 496 mag bravo 3
    8.1 496 / bravo III
    The cheap antifreeze is alcohol based, and about the same percentage so yes it would work. It is an expensive alternative to $5 a gallon for antifreeze. There is one type of plastic it will affect, but it is ok for most. It is flammable however so not the best choice.
    Last edited: Aug 8, 2017
  3. LTD.330

    LTD.330 Member SILVER Sponsor

    Oct 5, 2009
    Lake Erie
    1999 Sundancer 330
    7.4 MPI
    Have you considered blowing out your water system with an air compressor? Not only is it considerably cheaper than anti-freeze, there is no flushing of the water system required when recommissioning in the spring.
  4. hottoddie

    hottoddie Member

    Jan 11, 2012
    Boston/Cape Cod
    1986 Sea Ray 390 Express
    Garmin 4212 Chartplotter
    Garmin 24 HD Radar
    Garmin GSD 22 Sounder
    454 Crusaders
    This X2. Been doing it for 15 years. Connect compressor to the shore water inlet, lower the pressure to 50 psi and blow the lines clear. I hate pink anti freeze in the lines.
  5. rcknecht

    rcknecht Active Member

    Mar 23, 2009
    toms river,nj
    340 Sundancer 2001
    T 454 MPI
    I blow mine out too as was mentioned... I don't blow through the pump... After connecting to the shore water connection and blowing out the system, I disconnect the inlet and outlet from the pump and blow back to tank and to the HW heater... I also drain the HW heater before begin blowing out the water... I also blow out the AC system... However, I like the idea of using Vodka, if you can get it keep...
  6. CliffA

    CliffA Active Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    Raw Water Cooled
    V-Drive Transmissions
    i have used air from the exhaust port of a small wet/dry vac to blow out the water lines and engine block of a previous boat for winterization....this worked very well since it is a source of 'high volume - low pressure' air....the force of the air was not enough to do any damage.....

  7. Bt Doctur

    Bt Doctur Active Member

    Aug 21, 2010
    New Jersey
    Ex SRV 240 Weekender twin
    in between
    a waste of good booze, just use compressed air.

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