Originally Posted by NWJeeper
but I would NEVER put it in my fresh water system.
I'm glad that works for you. I don't want the expense and worry of a
space heater running in my RV all winter.
We leave a ceiling vent open just about 24/7/365 and have never felt like
there was any tendency for mold or mildew or even stale air inside.
We are in Kentucky where the winter air is typically dry.
If you live along the coast I'm sure that makes a difference in how you
manage your rig in the off season.
As far as RV antifreeze in the fresh lines, that's what it's made for.
In the spring we flush the lines briefly and go camping!
We often take a blue tote jug for coffee water but not always.
I've found that the water might have a bit of a "funny" taste the
first couple of days. That's why we use the blue jug.
The off taste quickly goes away.
I just don't want folks to feel like they must buy a compressor in order
to winterize their rig. It can be done with just a jug of rv antifreeze and
the on-board water pump.