We have a wonderful online tool to let us get a good look at things that are often hidden! Things like where and how the pump and pipes are connected?
https://catalog3d.winnebagoind.com/menu/Parts.htm
you will need to choose by serial number as well as the info you gave us in your post, but once there, choose the plumbing and fresh water.
Some hints to ease the learning curve if not familiar with this type setup:
choose an angle to look from at lower right. If not sure what or where, this may have to be somewhat random until you find the best view.
One way to spot a part that you may have no idea where it sets is to find it in the parts list at right and click repeatedly to make it flash yellow in the drawing!
Or reverse and click the part to get it to ID on the list! Helps if you see it but don't know what to call it!
To keep an item centered as you move around, first go to lower left to find a +, click it then on the item to center! Do this before zooming as it may fail if enlarged first.
Then you can click on the drawing and drag to move it around or scroll with the mouse to enlarge to get into super details.
I like playing with this so did some looking and got some ideas of what you may need, but you may also want to make notes as i find it great for solving lots of other questions!
Click these snips for better view or go direct for the whole story?
This the panel you mention?
That looks like two valves and another clip item?
But if we look behind, there appear to be several clamps and I would guess those to be screwed or bolted to the panel? Maybe you have to ease the panel forward and work around it to get it fully out?
So what are the odds of being able tog et in under the panel? Where it leaks is critical so this might not work but it also might save a lot of trauma if you can squeeze in under to tighten something???
Any chance the leak is at the little filter and you can just reach in to screw it a bit tighter? Maybe the fitting on the output side needs snugged up?
In working on the pumps, I find they often have a whole bunch of screws holding the plastic parts of the pump together with a thin gasket between and it might be possible to snug those down with a long screwdriver?
I like to try to avoid work when possible!
Wish you luck!
