If your referring to the scuppers here's a link to Bushwackers process on is Seafari. I believe Bigshrimpin used PVC for his re-tubing
http://www.classicseacraft.com/forum...r=51569&Forum=,f3,&Words=leaking%20thru%20hull%20scuppers&Search page=1&Limit=25&Main=49766&Search=true&where=bodys ub&Name=2198&daterange=1&newerval=2&newertype=y&ol derval=&oldertype=&bodyprev=#Post51569