Wet & Forget Outdoor Stain Remover – Costco Sale! by Rhonda September 7, 2022 *UPDATE* 9/7/22. The Wet & Forget Outdoor Moss Mold Mildew & Algae Stain Remover from Costco is designed to make outdoor cleaning quick and easy. This bottle attaches directly to… 0 FacebookTwitterPinterestEmail
