re: Undermount sink fell, how to lift and hold in place

Need two lengths of 2x4, two pieces of long enough 3/8" all-thread, large washers, and nuts. Basically you just need run the all-thread through the drain openings and into the 2x4's to create a clamp. This works far better than using beam or pipe clamps, also forget using silicone to adhere the sink to the granite, it will fail again, you need to use construction adhesive like PL Premium or two-part gun-grade epoxy. I also use epoxy mounted studs to reinforce after the initial work as set. Go back with silicone to fill the inside seam but never use it as a primary adhesive for an undermount of any type. I do this repair several times a year, not difficult but also not one you want to do every few years either.