Winterizing 2001 Journey 36

[Golfinscorp]

Today I went to my storage facility to winterize my Journey (First winter for me) and have a few questions.
The coach has a Swan Industries automatic winterizing system with by-pass and winterize switches located inside above the washer and dryer. I did call the previous owner to ask how he winterized, he said he didnt introduce antifreeze into the lines and believed that "one of the valves (either the by-pass or the winterize) was now "manual". I drained the hot water heater, the H&C lines etc and following the directions in the Swan manual turned on both switches. (because I dont know which one does not work). As a double check that I was actually bypassing the hot water heater I hooked up city water and turned it on. Guess what, water poured out of the water heater drain. I could not find either the bypass valve or the winterize valve to check if they were working, any ideas where they may be?. The only other valve marked 'Normal' and 'Bypass' is next to the water pump, I have no idea what this does, but I tried it in both positions with the same result. I dont want to fill the hot water heater with antifreeze as well as the water lines and so would appreciate any help available.
Thanks in advance

[Beabop]

Thyere is a Winnebago forum on this site.