My Premier hit 6 years old in February. So this month I decided to upgrade both rims and tires. I replaced the 14" rims with 15" rims and put new Carlisle HD tires on. There was plenty of clearance for the slightly larger tires. I took it for a test ride and I felt more composed while towing.
Also, I was tired of leaving my water pressure regulators at campgrounds so I replaced my city water inlet with one with a regulator built in. It was an easy replacement. Basically unscrewed the old one, cleaned off the old caulking and butyl tape from the camper surface. I Unscrewed the water line and screwed it onto the new inlet, put butyl tape on, and screwed the new one on. Took about 30 mins.