To replace a bathroom faucet, remove the original faucet and pop-up drain. Next, set the new faucet into the sink and hook the drain housing to the flange. Finally, install the new pop-up drain and check for leaks.
- Remove original parts
With the water supply turned off, loosen the supply tubes. Next, remove the faucet's compression nut with a wrench and remove the faucet. To take out the pop-up drain, make sure the nut above the P-trap is removed. Loosen the nut keeping the P-trap in place and remove the P-trap. Finally, pull out the pop-up lever and disconnect the drain and the flange.
- Install the new faucet
Set up the faucet correctly by pasting on the faucet stems and installing the rubber gasket, if applicable. If there is no gasket, make a line of caulk beneath the faucet. Fasten the faucet into place with a wrench. Next, attach the supply tubes to the faucet stems and paste the valve threads. Tighten the remaining nuts.
- Attach the drain equipment
Hook up the flange and the faucet's housing drain with some caulk. Screw it on tightly. Next, drop the pop-up drain and attach it to the faucet rod with a screw. Finally, clean the supply tubes and inspect the faucet for leakage.