Really Hard Water with a Lot of Iron

When we lived in NW OH we had THE worst water we've ever had....both iron and sulphur. We had a service - think it was Culligan - that handled the water softener and also a reverse osmosis for under the sink in the kitchen. We were on a well and also had to shock it with bleach...usually did it Friday afternoon before we went to the boat for the weekend and then rinsed, rinsed, rinsed on Sunday evening. PITA. You might try calling one of the service companies and see if they have something reasonable to purchase and to manage with an RV. Or possibly they could let you rent something just for the time you're there. Surely if the water is as bad as you say, there must be someone out there that knows the solution. Good luck...it's nasty stuff. BTW, we had so much iron in the water that when we watered the lawn and shrubbery, we had to keep it from getting on the siding because it left a nasty orange color, so if you wash your trailer, be sure to dry it thoroughly.