I am going to try this on-off stuff I hear you guys talk about. I had my boat in the boatyard for a while and some it had some VERY serious bird crap(cormorants I think) all over the boat. It dried and I had my son hit it with a hose and water and boat soap. Well it turnned EVERYTHING it touched BLACK. Like ink. I was in the glass I tried everything (and a full day of scrubbing) I had and got some of it off but it is still grey in places. I am hoping it wears off. That was the worst stuff I have ever seen on glass.
Sandy,
I don't think you'll be disappointed with the On & off. For the bird poop I would soak it with water before hitting it with O&F. Put some rags or something over it to hold the water on for an hour or so, then remove the rags and use the O&F.
Hybrid Mode
