Quote Originally Posted by canuck grower
It's probably algae. I had some of that at the beginning as well and it stopped as soon as I got some proper airflow going in the area. If you already have good airflow then it might be something else... hard to say exactly without pics!
yeah i apreciate it, i would post pics but my cell phone cam sucks. I had a a/c unit runnin on the cab itself and i think your right about air flow, got a fan in there now and we'll see how it goes, thanks for your help.