I have a 300 gal with no top. I want to build one out of plywood. What would be the best price saver for waterproofing the wood, yet still have a pleasing astetic appeal? Any help is greatly appreciated!
start with pressure treated ply as suggested and then give it several coats of spar varnish. It's a pain in the butt to have to wait but it makes all the differance in the world.
