the outside of my 2010 factory original blue double Bimini looks good but on the underside it is streaked white and has some black mold spots on it that I can’t get off. I have used simple green a scrub brush and pressure washer and when it dried it looked the same. I threw it in the washer and used warm water and laundry detergent. I had the same results as before. Is there anyone that has had the same issues as me and what did you do to fix it. No rips or tears and it appears to have several years of use left in it if I don’t destroy it by trying to clean it. Thank you
Jordan
Jordan