Need water pump plumbing diagram or pic!

I have a 2000 Montana that has been owned by a travelling nurse specifically as a city water connected place after (I guess) the water pump failed, since the pump is still in the basement, but the new plumbing has bypassed whatever was there before. Only the pump base remains in the location of the original pump. Does anyone have a diagram or know of an old post that shows/describes what fittings, valves and pipe/tube locations?
I first noticed that I didn't hear the pump kick on when I tried it's switch, but then when we moved the 5th wheel, I saw clean water running out from under the belly panels. So I pulled got under the sink and found that the water pump had been removed and new pex has been installed, totally bypassing the pump plumbing (no longer there). The have also removed the plumbing to the outside shower, along with it's panel fittings, basically leaving it with the just the old door panel, which needs replaced anyway.
I know this is simple, but even though we got the 'seller's manual' with the rig, I can find nothing on a diagram of how the plumbing around the pump. Any and all ideas or comments would be helpful. Thanks in advance, Lee Butcher ps-tried to post some pics of "what's left", but it's been awhile, so i'll have to re-figure that out. :(