Valve positioning for filling water heater

Which valve fills the water heater and what orientation should valves be in for operation? Which orientation is bypass for winterization? Getting ready to fill the fresh water tank and camp in the yard on Thursday so that we can test all systems well before our first trip out. I forgot to ask the dealer how to fill the water heater and don't want to ruin the water heater right out of the gate. We have the 2014 178 so I assume everything is under the bed. Thanks and if you have links to pictures that would be helpful.

Sounds easy enough. Thanks for the help!

Originally posted by kellyandkelly Is it under the bed?

It varies by model.  Marwayne added hinges to his WH cover.  You probably have to remove 4 screws in the the corners of the panels.  (I replaced my screws with velcro.)  It's easy to tell where the water heater is by looking at the outside.

You should explore.  I think every ankle-level panel that is screwed on has something behind it that you need to deal with at least twice a year.

TT