Thanks everyone. I was skeptical about the ethanol solution at first,
but since I use the water primarily for handwashing, cleaning, boiling
pasta, etc., why not?

Mark

On Mar 13, 2011, at 12:47 PM, Jim Arnott wrote:

> A half gallon of vodka comes to mind....
>
> Jim
>
>
> On Mar 13, 2011, at 8:56 AM, Mark L. Hineline wrote:
>
>> Next weekend I'm going to be on the Colorado Plateau for three
>> nights.
>> Daytime temps in the 50s, nighttime down into the 20s.
>>
>> Are there any tricks to keeping the water tank happy and unfrozen?
>>
>> Mark