This is the first season that I decided to leave the boat in a slip, full
time, in a marina. I have a 24 foot Bennington pontoon boat. Now, after
about 2 months in the water, the outboard engine (part that is submerged) is
all green from algae (fresh water river BTW). The pontoons are turning
black. My questions is, when I take it out, will it be possible to get it
looking clean again?

Also, do most of you keep the Outboard engine submerged when in a marina? Or
should I lift it? My fear is that if its lifted, someone could hit it...
submerged it had better protection.

Any thoughts on these issues?