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!