​Never had this problem, maybe it doesn't get cold enough here in
Alaska???  Our van is stored outdoors as we have not had a garage it would
fit in since 2005 and when I park it for winter I pull the drain cap and
let it drain and its been fine.  I don't blow the lines clear, add
antifreeze, or drink err......add  cheap vodka, though I do keep a bottle
of Tanqueray gin in the cabinets.

Mark in AK

On Fri, Oct 14, 2016 at 8:58 PM, David McNeely <davmcneely40@gmail.com>
wrote:

> I have never had the system freeze, and all I've ever done is drain
> everything.  Since the trap is open to the air in two directions (I leave
> the drain cap off in winter), and holds little water, it is ok -- or at
> least mine has never cracked.  The beast does stay in the garage most of
> the time in winter, but I drive it occasionally, and in below freezing
> temperatures.
>
> On Fri, Oct 14, 2016 at 4:59 PM, Richard Golen <rgolen@hotmail.com> wrote:
>
> > I also use RV antifreeze.  I run it through the faucet and fill up the
> > drain pipe from the sink with it (just make sure the drain plug is in
> place
> > and tight).
> >
> > Sent from my iPad
> >
> > > On Oct 14, 2016, at 19:55, Stuart MacMillan <stuartmacm@GMAIL.COM>
> > wrote:
> > >
> > > RV antifreeze is probably cheaper than vodka, but don't drink the
> > leftovers.  Any parts store will have it.  If you have the OEM Delta Six
> > faucet, you need to get antifreeze into it or it will freeze and break.
> > There shouldn't be any water in the trap, or at least not enough to break
> > it when frozen.
> > >
> > > Tie a ribbon on the faucet to remind yourself to drain and flush the
> > system in the spring.
> > >
> > > Stuart
> > >
> > > -----Original Message-----
> > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
> Behalf
> > Of Eric Caron
> > > Sent: Friday, October 14, 2016 4:08 PM
> > > To: vanagon@GERRY.VANAGON.COM
> > > Subject: Winterizing the water system
> > >
> > > Hi folks,
> > >
> > >        It is expected to be below freezing in the north east tonight. I
> > have drained my water tank, drain the hoses, and also drain the plastic
> > thing that connects the city and tank water. I have also try to get water
> > out of the trap in the sink.
> > >
> > > I have had failures two springs now.  first the sink trap and then the
> > plastic connector for city and on board water.  I hope I’m free of
> > surprises this spring.
> > >
> > > Any tips on winterizing the water system?
> > >
> > > Eric Caron
> > > 85 GL Auto Westfalia
> >
>