[DebDav]

Ours fell down also.

I cut short pieces of plywood to jam under the sink and raise it to the counter. I cleaned the old caulk. I applied new GE Silicone II caulk and pressed the supports to raise the sink. Clean the excess caulk from the edge. After 24 hours the supports were removed.

I made sure that the caulk was applied heavy enough to spread out inside under the cabinet to make a 100% seal.

I learned this in our stick house when the kitchen sink fell from under granite.