[VAC] Winterizing -bypass valves

["randy unter" <runter@xxxxxxxxxxxxx>]

Jim: Actually I did use a bypass valve for the water heater. I kept 
looking for the leak but there was none. I couldn't believe the 13 
gallons either, but it all went into the water system, sans heater.
Speaking of those after market water heater bypass valves, mine 
subsequently failed when I was away for an afternoon. That was a big 
lesson to turn off the water supply when away from the trailer. A turn 
valve blew straight out allowing full force shore water to fill the 
lower back end of the Overlander. Careful inspection of the valve 
indicated the machining was poorly done causing the ring snap to pop 
out. I've since removed the bypass system and resort to the original 
plumbing. That's why I now blow out the system which I believe is the 
most cost effective method. Plus, I don't have to flush out the 
antifreeze in the Spring. 
Randy Unter
'66 Overlander