Quote Originally Posted by 996scott View Post
I take my cover off and lay it on the lawn or driveway and use the hose to spray it off and then hang it over the fence to air dry. I don't use any soaps or detergents.
I do the same. Clean an area on the driveway, then hose it down the cover. Also used some diluted Simple Green and a soft brush.

On my 2007, after the years went on, I would add a 3m waterproof product every other year. Worked well. Have not done my 2018, but I probably will this spring/summer once the pollen season is over.