Step 3: Rework the drawers.
Use a jigsaw to cut off the backs of the drawers that surround the sink and/or plumbing so that the drawer fronts fit perfectly in place.

Place the sink in the dresser and enlist the
help of a plumber to hook up the plumbing.

Step 4: Connect the water.
Move the dresser into place and have a plumber hook up the hot and cold water lines and the drainpipe. For added sturdiness, secure the back of the dresser to the wall with screws drilled into the wall studs. Reinsert the drawers.

Step 5: Waterproof the top.
To make a wood top more resistant to water, apply two or three coats of polyurethane, allowing the sealant to dry thoroughly between each coat. To keep the finish pristine, wipe off water after each use.