Okay, this might just be one of those "duh" questions:<br /><br />1994 Chris Craft 197 Concept <br /><br />I've been cleaning this insane algae and water scum off my boat all weekend; I'd kept my boat in the lake all summer. (Thanks for all your suggestions on what to use--Sno Bowl is working wonders!) Right now the boat is on the trailer, and I can't begin to relate to you the angles I have to go at it. But, I was wondering how do you clean the very bottom that's actually sitting on the trailer? Thanks! And sorry if the answer is supposed to be obvious!