mbopp wrote:
A filter is optional.
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A water filter has been an essential item for us!! Unless you know the quality of water going into your rig at all times. Such as if you only fill up at home and only use the water in your rig (which some do). If you are using campground water (which we do all the time) some kind of filter is really important. You can't really tell just by looking as it comes out whether the water has problems or not. A filter can prevent a lot of problems, and its really not that much harder.