I know I preach about the importance of proper sink installation what with the exploding reinforcement rods, but here's another aspect I've neglected. Leaking undermount sinks, in combination with wood and/or particleboard, make perfect insect larvae habitat. See the little black dots? Those are empty cocoons of something that hatched and wandered away right next to where you prepare food for your family. There were a bunch more. The wood in front is a cleat that was supposed to support the sink flange. As it's pictured being removed, it's pulling the plastic off the cabinet side which is the angled particleboard you see. The bugs and frass are on the particleboard cabinet side. And no, plywood would have made no difference. Bugs aren't that fussy. Gr-oss.

I was called to fix this seam in addition to the falling sink. The tops are out-of-plane so the 4" high backsplash is heaved at its seam behind the faucet. I have to virtually reinstall the tops level and on plane. The right side of this seam is a 7' long peninsula.

Getting to level requires shimming. Major shimming; I'm not reinstalling the cabinets. This is on the opposite end, about 3/4" thick. Need a bigger piece of molding now. Not my job.

Top and splash are on plane and level; chips abraded from sink edge and polished; cabinet front is reinstalled; sink is strapped; seam is done. 9 hours.