How to Install a Bathroom Faucet with Pop-Up Drain

Preparation and Removal

Start by shutting off the hot and cold supply valves under the sink. Open the faucet to drain remaining water and disconnect the supply lines using a basin wrench. Disconnect the pop-up drain linkage by unscrewing the clevis screw and removing the pivot rod from the drain body. Remove the old faucet mounting nuts from below, then lift the entire faucet assembly out from above. Scrape old putty or caulk from the sink surface with a plastic putty knife.

Installing the New Faucet

If your new faucet includes a gasket, place it on the sink surface. If not, roll plumber's putty into a rope and place it around the faucet base plate holes. Lower the faucet tailpieces through the sink holes from above and press the base firmly against the sink. From below, thread the mounting nuts onto the tailpieces and tighten until the faucet is secure but not overly tight. Connect new braided stainless steel supply lines to each tailpiece and to the shut-off valves.

Setting Up the Pop-Up Drain

Remove the old drain body from the sink using a drain wrench or pliers. Apply plumber's putty under the flange of the new drain body and insert it through the sink hole from above. Thread the mounting nut from below and tighten until the putty squeezes out evenly. Install the pop-up stopper into the drain body, then insert the horizontal pivot rod through the drain body opening and through the hole in the bottom of the stopper. Secure with the pivot rod retaining nut.

Connecting the Lift Rod

Thread the lift rod down through the hole in the faucet body from above. Under the sink, attach the clevis strap to the lift rod using the clevis screw. Connect the horizontal pivot rod to the clevis strap using the spring clip — the pivot rod goes through one of the holes in the clevis strap. Adjust the position so that pulling the lift rod up fully closes the stopper and pushing it down opens the stopper. Test by filling the sink with water to verify the stopper holds without leaking.