Any suggestions on the best way to remove this panel. I need to get behind it to replace gate valves for grey and black water. This is on a 2000 adventurer 35u. TIA.
Look at a picture, I'd say you'll find the white panel attached to the wet bay exterior (door) wall. You should be able to see them if you stick your head against the panel (and have magnifiers). You may be able to feel the screws, also. If it's not held by those flanges on each side, then it's held at the top.
Of course, everything on the face of the panel will need to be loosened or removed, too.
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Mark 2008 Holiday Rambler Admiral 30PDD (Ford F-53 chassis) 2009 Honda Fit Sport
See "Detail E" and "View F-F" on sheet 3 (that's page 7 of 8 of the PDF document) of this plumbing diagram for info on the service panel and piping/fittings. It appears as if the panel hangs from overhead screws. There are 3 holes shown, but it calls out 4 screws.
Other info on your coach is available through this upper-level Winnebago link: