I just asked my Chemistry colleague here and the reason why NOT is because alcohol DISSOLVE plastic.  It has the effect on plastic even in small quantities.  It's a slow process but nevertheless it dissolve plastics.  The first stage is minor etching of the inside of the container.. and eventually the seams..  

So sorry folks.. bad suggestion from yours truely..

Yau-Man Chan
87 GL

>>> Jim Fritz <jfritz@DECORAH.K12.IA.US> 10/05 12:10 PM >>>
I've been reading the posts about the use of non-toxic RV anti-freeze to winterize the water supply.  Two questions (probably both dumb) #1 in all seriousness:  why won't Vodka (or Tangueray gin - as recommended by YauMan Chan) work?  As a lover of vodka martinis, I see this as the most elegant solution :-)  #2  What about just plain old grain alcohol?  If the system is flushed thoroughly there should be no apparent long-term damage.  
I'd be interested in other's thoughts because I'm winterizing my Westy for the first time this season.

Jim
jfritz@decorah.k12.ia.us