Originally Posted by HaRVey
I would try checking the water supply in order, one stage at a time.
First check from supply at the campground faucet only, then connect your hose but not the RV and check for clean good flow, then co nect to your RV and open your filter and check the flow to it. If everything is good up to the filter, but once you connect the filter and check flow you have something rusty looking, I'd suspect the water heater (do you get rust coming out of both hot and cold or just hot?
It can not be the water heater. As the water is filtered before the water heater not after it. And his issue is that the filter keeps getting clogged.