Hard water stain
I think I saw the answer to this once, but can't find it now or remember the solution.....When running the rooftop AC, water will trickle off the roof(normal) and run down the side of the coach leavin...
Forum Discussion
Nu Finish polymer (wax) does an excellent job of removing surface stains, black streaks, minor scratches in gel coat all while leaving a great shine. I wouldn't recommend anything abrasive, that's plain nuts. Another great product that I use all the time is Super Clean by Castrol (as in oil). A gallon at Wal Mart is about $9, in the automotive section purple jug. This stuff will clean and de-grease just about anything. I trust it more than Awesome sold at Dollar Stores. A diluted mix of it is a mainstay in our laundry room to remove grease stains from clothing with out harm or fading.
