I have a 12 x 40 foot park model trailer with vinyl siding. Each year is a major job to clean with cleanser and a scrub brush. This time I saw an ad for your product and thought I would give it a try. Got the whole thing cleaned in an afternoon with just a little scrubbing. All done and looks like brand new. Proudly showing my neighbours. I am so excited to have this big job done in no time and will use your product again. Excellent cleaner. Thanks!