We are new to TT. On our Greyhawk class C there was one threaded hose inlet ( not counting tank flush) and you used valves to determine where the water went. Our Jayflight 28BHBE has two water inlets. One threaded for water use and one not threaded for tank filling. It seems you just stick the hose in the filling inlet. But then it seems other crap could get in the tank such as dirt on the hose end. Is this normal with most TT? Just seems strange for it not being a threaded inlet....
The threaded inlet is for hose connection to use city water pressure to run the system. The other fill is for the water holding tank which you would use the electric pump to pressure the system. If any junk gets in the water tank there is a small screen filter inline just before the pump.
It's not designed to be connected to a hose all the time. Just for filling the tank. It could be filled with a bucket and funnel if necessary. The inlet filter on the pump will catch any debris and the ones I have used had a cap on the outside.
I had an old water hose that developed a leak so I cut off about a foot of the female end. I stow this in a plastic tub with other water parts to keep it clean. I attach a 90 degree elbow to it so the hose can hang straight down when its inserted.
"I might be movin' to Montana soon..."