Winterizing thread

[birdshill123]

Although I am a new BB owner I feel I am more than qualified to jump
into this thread because: A: I have been RV'ng for 35 years B: I live
where it can and has reached minus 40 in the winter. C. We winterize
our summer cottage every fall.

My experience has been that compressed air by itself is not enough.
Water will be trapped at the elbows. Especially with copper pipes.
Assuming you have some sort of bypass the best method is to first
blow out all the lines. Then using a hand pump, pump the pink stuff
BACK from the faucets into the lines. For instance you can open the
bathroom faucet and pump from the kitchen faucet back to the
bathroom. When pink stuff comes out of the bathroom faucet pump from
the bathroom faucet to the shower. finally you need to make sure that
pink stuff is in the lines from the bathroom to under the bed. You
can manually open the check valve in the fresh water intake and have
some one pump from the bathroom till pink stuff comes out the water
intake. An alternate method is to disconnect the intake line at the
water pump and pump pink A/F to each faucet and toilet. Murphy's law
states that if a line is going to freeze it will be in the most
inaccessable place!

Bruce 1988 FC 35