If you guys don't already have a water softener, I recommend getting one. We were tired of dealing with water spots on the shower enclosure and some of the campground's hard water left me itchy after a shower.
We got the RV-PRO 10,000 from Camping World and it's been working great. No more water spots in the shower or on our dishes and our clothes are softer too.
Today I washed the trailer and our black truck with the hose connected to the softener instead of straight from the campground tap and they both air dried without spots. Yeah!!!