Installing a Pop-Up Drain

Apply Plumber's putty

If the sink is not supported with a cabinet, use a 2×4 to support it while you’re working. Cover the bottom of the flange with a rope of putty.

Thread the locknut onto the drain body

Add the friction washer and beveled gasket.

INSTALL THE DRAIN BODY Install the drain body

Push the drain body up through the lavatory hole from underneath. Place a rope of putty under the drain flange, insert it into the hole from above, and screw it onto the drain body.

Tighten the locknut

Hold the drain body still while you tighten the locknut, first by hand and then with water-pump pliers.

Turn the drain body to the rear

This will line it up with the pop-up linkage. Apply silicone caulk at the drain and Teflon tape at the extension piece to seal the drain tube. Inside the sink, remove any excess putty with a plastic putty knife.

Install the drain plunger

Slide the plunger into the drain opening.

Insert the ball into the opening

The ball should fit snugly into the opening in the drain tailpiece.

Thread the ball nut hand-tight

Slide the ball nut over the arm and screw it onto the threads of the drain tailpiece