Water and roof run off marks
Where water runs off roof and down side window there is always a mark that is hard to get rid of. I bought some glass stove top cleaner which is a mild abrasive and puts a protective "coating" on. Any...
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I can't believe no one has mentioned a degreaser like Simple Green. There are cheaper versions of the degreasers. I think Walmart sells a degreaser like Simple purple or something like that. These degreasers also work great for restoring your rubber roof and lap sealant back to white. It works great for removing the water marks from the run off. Spray it on straight from the bottle. Do not dilute it into a wash bucket. Just scrub it with whatever you wash the motor home with. It comes right off with virtually no trouble at all.
