I did the same with my canvass cover made by Aurora. They recommended a good cleaning and covering with certain types of water repellent. I used the Formula 303 replant and also ordered their cleaner. It seems to have worked very well. I sold that Triton to my son and the cover is still working beautifully. Be aware, if it is a canvass cover, to spray in several light coats to allow for drying between coats and better penetration.