THis is what I did. I added in line scuppers. Prevents water from coming in, but is a bit slow with water coming out.
Scupper is a bit higher then the deck making it a bit hard for water to drain. Shoot your drains straight out the back.
Use this web site for ordering deck drains.
http://www.thmarine.com/
I was gonna use these, but two of them, but I think there was a problem with teh deck height. I have a outboard, These might work on an I/O. Still have them if interested.
These deck drains work great. They have a ball valve that lets water drain, but doesnt let water in.
