Hey Guys and Gals: My friend suggested that I attempt to clean my sail (C27) in my bath tub. The alternative was to spend approx $150 and send to the sail maker for cleaning. So I took my main, rolled it in a ball and put in the tub with some Cheer. I spot cleaned some old mildew with Tilex, being careful not to leave it on to long. I swished it around, let soak for about six hours, then took it out last night. Lo and behold the sail looks great! The mildew is gone where I spot cleaned. I know you can't use Tilex on just any type of fabric but my sail is dacron (I believe) so I was alright. Just thought I would pass along. Melody