|
You may think I am crazy, but I use Kboom foaming bath cleaner. I just don't leave it on long. Black streaks and grime will come right off. Read label carefully and test a section, spray it on wait two min and rinse well. It works on impossible road grime. Note: I have very health wax coat on my RV. It gets redone after the Kboom treatment ! We used it on our houseboat. Scrubbing bubbles works about the same. Test it first!
|