gas tank grounding?

[warthog5]

ground from tank tab too bronze thru-hull,

Don't do that part.

Use Green wire for the run from fill to tank tab.
Black from Tab to fuel sender ground. It should ground fine thru the mounting screw,but I still run a jumper.

Pink wire from sending unit [hot] to gauge.

I also coat the tab on the tank with liq. electric tape after the connection's are made. This helps with corrosion from moist air in that area under the deck.

Do the same on the sending unit connections.

It's always a PITA to fix connections on tanks. This little precaution seems to help for down the road problems.