It is time to replace the cartridge in the standard whole coach filtration system. I have been reading up on the different types, and the general consensus is to not use a Carbon filter in front of water going into the fresh tank as you would like some chlorine in there to keep the risk of "bad things" growing at a minimum.
Is the plumbing run so that when the water goes from the holding tank to the coach it runs through the filtration system? Or do you only get filtration if you are connected to the city water supply?
Also, some comments have been made about filters that can drastically reduce flow - certainly don't want that
The two I am looking at are
Watts MAXVOC-975 C-MAX 10" VOC Water Filter (what comes with the unit), and Pentek CFB-PB10 Filter-10" Carbon Filter.