Anyone have any "lessons learned" from doing your own boat plumbing concerning through hull fittings?  Im getting ready to wire up a new livewell and have to drill into my 0.100 thick aluminum hull.  Its my first time doing such a thing so I want to make sure I got all my ducks in a row     I'd planned on just a normal 1" fitting tightened down with marine grade sealant.

Make sure you clean down all surfaces with rubbing alcohol so that there is no wax or oil and that  the sealant works right, and you should have no problems