[ctbruce]

A WH bypass is not an option. It is there. Did you have a PDI (pre-delivery inspection) with your dealer when you picked up your trailer? They should have prevented your stress by going over this with you.

There will be a valve, probably only one, at the back of the WH. Yes you may have to take out a drawer or remove a panel to access it. If you do a search on the forum, you will find lots of threads about all of this. I hope you find it and this helps. The picture posted above is what you would see if no walls, etc.