STEP 8 Apply caulking compound around the perimeter of the cutout opening. Place the sink into the cut out opening and be sure it is properly seated, make sure the sink rim covers caulking all round. Insert the clips into the U shape channels at the backside of the sink rim. {Recommended clip placement, two clips on each rim, Figure 3) Figure 3 STEP Rotate the clip, tighten to secure sink, do not over tighten as damage can result.