Re: best way to drill thru a hull???
It's no big deal. Layout the spot you want to drill, making sure the inside is clear and the hose can be properly routed. Drill a small pilot hole to confirm that everythings A-OK, then use a sharp holesaw at slow speed with light-to-medium pressure until the hole is cut. Use a holesaw that's slightly larger than the fitting so you're not fighting to put it in. If the hull is cored, you'll need to dig a little of it out around the perimeter, then mix some epoxy and spread it into the void. Let it dry.
I like to use fast-set 4200 for anything above the waterline, but 5200 would work, too. Apply it to the back of the fitting where it'll meet the hull and install it with a slight twisting motion. Install the backing nut snug (but NOT tight). After the sealant is 100% dry, put another 1/4 turn on the nut to compress the sealant and make it absolutely watertight. Final hose connection and wiring, and you're done. Piece of cake.
