Fresh water fill solution
I've missed having a fresh water fill portal other than the city fill connection on my 1998 U270. When we camp in National Forests there is often just a single community fresh water faucet which may or may not have a threaded connection for water hose. Some hosts and rangers take a dim view of stringing water hose to RV to refill storage tank. Most of the time moving the RV and hooking up a hose blocks the road to all traffic. I saw an interesting solution devised by a retired engineer who had a large popup camper with shower. He carried a couple 7 gallon Reliant water contains, filled them at the faucet and then transported them in the back of his SUV to his campsite, and then pumped water into his camper with an RV pump powered off his camper battery.
I recently cobbled together a similar system. It consists of an RV pump, 10 foot of reinforced 1/2" hose connected in 5' sections with connectors to pump inflow and outflow. The outflow is terminated by a male water hose connector, the inflow is terminated with a pex connector and 18 inches of 1/2" pex pipe with a 45 degree cut on the end. This is inserted in the water container. I set up a quick connect 12volt power cord that runs from our house battery to a 12 volt switch rated for 30 amps and protected by a 20amp fuse. I used it to sanitize the water system with a bleach solution, works well. It all stores in a plastic box.
Seems like overkill but I don't have to lift and hold water cans to pour in the water and required no modifications to the coach.