[wiredgeorge]

Just so you know, another way of approaching it is to drain the fresh water tank. Then put a compressed air nipple on the city water connector and use a compressor to blow out the lines. This is after the hot water tank is drained, etc. I dump some antifreeze into the drains so it fills the pee traps and into the toilet so there is some in there are well (I make sure the gray tanks(s) and black are drained prior of course.) Last thing I do is turn on a 75W incandescent bulb in the pass through to keep things a bit warm near my plumbing in the event a disaster occurs and it drops down below 32F. Guess we can get away with less winterizing here in the Garden of Eden where it doesn't freeze all that often.