Deck Plate options????

[Bryan A.]

I need to cut two holes in the deck of my boat to acess the tops of the tanks. I plan on going with the traditional pie plate stye. The deck is glass over plywood and I want to use the most watertite and less intrusive possible. What have people had experience with, screw in or pry out?
I have had both at one time or another on various boats. I am again, looking for opinions or suggestions or better solutions for this one. The tanks are totally sealed under the deck righ now and want to avoid intruducing water into that area. Thanks in advance.