In a message dated 10/5/98 8:15:19 PM Eastern Daylight Time,
YauMan@CCHEM.BERKELEY.EDU writes:

<< Here's what my chemist friends tell me:

 Ethylnol or ethyl alcohol is the drinkable alcohol.. and "most" plastics will
dissolve in it... some plastics are more resilient than others. If you put gin
in a laboratory grade plastic bottle, you can "taste" the plastic after a few
days.  >>

How do you explain Kamchatka Vodka and other brands that have sold their
alchohol in plastic for years? My family is not terribly snobby abut alchohol
taste, but we've never tasted plastic in our booze.

Beyond that though, I say, follow the manufatureres recomendation. Drain the
tank, open the top lid and let it dry out thoroughly, and have a nice day.
Freezing or not.

gmbulley
cary, nc