We recently bought a used Coleman pop-up camper; it is in great shape except for one thing the awning is extremely moldy. I tried cleaning it with CLR and a power washer, but it really didnt do much for the stains. Can you guys suggest something I can use to get rid of these stains? If I leave it open will the sun fade them out? We are not planning on using it until spring so I have time. Thanks in advance for all your help. Oh, a side note. Before anyone yells at me about washing canvas in Ohio in the middle of winter it was done in a barn so I wasnt real concerned about it freezing and cracking lol. I was just so excited about my new camper I have spent every weekend doing something to it.