Question:
What is the best way to clean that canvas boat cover before winter storage?
Answer:
-Is it vinyl on one side or cloth on both?
My upholstery guy just soaks the cloth stuff in a simple green solution and
rinses, then sets it up to dry. Seems to work well.
-Plain Soap and warm water, Probably in your household Shower. Make sure and
rinse out all soap from cover. Hang outside to dry (do not dry in any
machine)
If you aren't leaving it on the boat for the winter, try to leave it
stretched out somewhere (Attic).