Have you checked the owners manual for location? It has a chart for locations of valves and such.
They can be wrong but that is often a good place to start.
I looked at the parts diagrams and do not see the bypass they mention but I may have also just been overlooking it.
Sometimes my reading is no better than their writing!!@
Manual shows it in a back compartment??
Owners manuals here if not on hand:
https://www.winnebago.com/owners/own...erator-manuals
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!