Went to the trailer yesterday, and found to trouble with little water flow. The filter was packed up. Removed it, and cleaned it. Great flow now.
What was a little more difficult was changing the cartridge in the Moen shower valve. The retainer clip would not come out, or the cartridge itself. In the heat of the trailer in a confined space ie. the shower and head I nearly had a heat stroke. I was completely soaked with sweat. Finally getting the whole valve assembly I headed for the wholesale plumbing supply we do some business with just up the road. They destroyed the clip getting it out, and 3 brutes pulling on it could not get it out. Finally we got a pulling tool. It worked with much coaxing. Part of the cartridge was broken off.
The problem was hardwater and probably well water with mineral deposits. That valve cartridge was really stuck.
Well. there was good news and bad news. They had the replacement cartridge but no retaining clip. So off to Lowes to see if I could find one there. Finally I found a bubble pack repair kit that had one. Of course I had to buy the whole kit. Then back to the trailerto reinstall the shower valve.
The water flowed, and cut off. No dripping. It doesn't take much to make me happy.