While dumping my tanks after this last week up in the foothills of the Sierras. I thought of one of my most useful mods.
Why didn't Fleetwood on their Jamboree/Tioga models do this. Put in a Tank Flush, it was such a PITA to drag a hose and a
Tank Washer into the RV then yell out the some one outside to see if there was still debris coming out the
Clear Hose Fitting. So I installed one. A
Quickie Flush I also used a
90 Degree Elbow so it would not kink and put it close to the tank.

I used stainless steel 2 in. screws to anchor the stainless plate to the bottom of the wall then bolted the bracket for the hose to it, using stainless bolts and Ny Lock nuts.

Now I just hook on my
Guillmour Quick Disconnect that I have on all my hoses, and rinse away.
BTW you can buy them at Lowes at half the price that is posted in the clicky.