How to soft-wash vinyl PART 2Tags: non-pressure cleaning, soft-wash|Posted in: Siding/Exterior House Wash Home » BLOG » Siding/Exterior House Wash » How to soft-wash vinyl PART 2 After roughly 10 minutes of dwell time the siding is free of mold. Though our customer is slightly camera shy, he is quite please with the outcome. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name* Email* Website Save my name, email, and website in this browser for the next time I comment.