Kevin came over to help buck the rivets at the leading edge of the tank that I can't reach solo. Starting with the center rib we put in the first three rivets on the rib starting with the most forward. Then we moved to the ribs to left and right, alternating ribs as we put in the first three rivets each. Rolled the tank over and used the same procedure to put in rivets on the bottom. Still had some workable sealant, so we put one more row of rivets in on the top of the tank. Two bad rivets out of the 35 we shot.