How to soft-wash PART 1Tags: non-pressure cleaning, soft-wash|Posted in: Non-Pressure Roof Cleaning, Siding/Exterior House Wash Home » BLOG » Non-Pressure Roof Cleaning » How to soft-wash PART 1 Here is a low pressure soft-wash using chlorinated detergents to rid siding of mold. This video is an abbreviated version. Actual dwell time for detergent is about 10-12 minutes before rinsing. Leave a Reply Cancel reply Your email address will not be published.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.