I know Carol Olsen well. Very nice business woman. I had one of the Fancier Echos. Loved that little boat. The pontoons have like a dust in them. If they get a small leak, you shake the pontoon and t is self sealing. Plus they are a harder plastic like the rubber garbage containers. Of course I am talking about the covered pontoons with frame, the Hobie style I have not tied, but you might be interested in this:

http://www.ventureoutdoors.net/