I have seen several systems on TV, both portable and installed into dock boxes. Not sure if this is something you get into but would be curious. We have well water at the marina and it horribly stains the boats if you don't use some sort of filter when you wash the boat. Not to mention the water smells horrible when stored in a water tank even with adding something like Aqua Fresh or other chemicals. Problem is even some of the larger home style filters from home improvement stores (I know, I know...) don't remove all the iron and other crap in the water. Plus they get clogged and limit water pressure within a month of use. I would be interested in hearing your experience and what you can offer for a solution in this situation.