Hi everyone. I know there are LOTS of posts regarding cleaning of tenting fabrics on the portal. However, I'm having trouble with a stubborn area and I'm a bit hesitant to use anything too strong. We have a 2007 Jayco 1007 that apparently had a clogged AC drain when we last took it camping. Little did we know, on the trip home the water from the unit leaked all over our small bunk end and mattress . We just popped her back up for a trip (didn't camp much this summer with the heat) and there is now a substantial blackish area on the interior tent fabric at the small bunk end . Nothing on the outside, so we know it was the AC. We've fixed the issue with the drain, but now we're left with this ugly stain! I've checked the owners manual and all it says to use to clean the interior fabric is warm soapy water... yeah, that's not doing anything to make this go away. My husband (not knowing any better) did used a mild bleach and water mixture - which did help lighten some of the area. He rinsed the area very well, but I've read that this is the LAST thing you want to use on your fabric. We also purchased a bleach free mold & mildew cleaner from Camping World that we were told would take care of it. We might as well have just used water because it made no impact on the stain. Does anyone know of anything we can use that will get rid of the staining and clean this area without damage? Any help would be great!