I suppose one could add a little ethanol, for those who want it.  Haven't calculated requirements by volume, but of course if children or the abstemious are involved, no go.   mcneely

---- Alistair Bell <albell@shaw.ca> wrote:
> I agree with Dave, i haven't been able to figure out a way (easy way)
> to keep the main tank above 0 C. I've had the tank freeze, didn't
> damage anything, but I wouldn't make a habit of it.
>
> Jugs o' water is a clunky but workable solution I admit. I've had them
> freeze too (-5 C over night in van). Had to melt snow that time :)
>
> alistair
>
>
> On 13-Mar-11, at 9:50 AM, Dave Mcneely wrote:
>
> > Mark, when camping in winter, I just haul my water in jugs.  Of
> > course, they can freeze, too, but it won't damage water lines.  down
> > to mid-twenties, I haven't had anything freeze, just seems not to
> > get that cold in the van when the temperature warms into the fifties
> > in the day. mcneely
> >
> > ---- "Mark L. Hineline" <hineline@OCOTILLOFIELD.NET> 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
> >
> > --
> > David McNeely
>

--
David McNeely