Good day all. I recently purchased a used 2012 240SD. Over all the boat is very clean but the windshield has heavy water spots on it, so heavy in fact I have to look over the windshield to see. I have tried a Brillo pad in a small area on the side with little effect. Does anyone have any advice on how to remove or reduce these spots? I know new glass is ridiculously priced so that's not an option for me. Any ideas or help would be greatly appreciated.