On Thu, 11 Sep 2008 20:30:46 -0500, Vic Smith
wrote:

I was wondering about that. BTW, what kind of maintenance do you do
on the concrete dock pilings down there. I noticed about 6" of shell
growth on my sister's dock pilings in Punta Gorda.

A lot of people, including myself, are using plastic "pile wrap". The
local dock builders in SWFL know where to get it. It keeps the worms
out and reduces the amount of other growth.