Plumbing parts, fittings and repair guides for home and trade

1. Clean the stopper

Pull out or unscrew the pop-up stopper and clean off hair and buildup. This alone often restores normal flow in bathroom sinks.

2. Use a plunger

Cover the overflow opening with a damp cloth, fill the basin with a little water and plunge firmly. For double kitchen sinks, block the second drain.

3. Remove and rinse the trap

Place a bucket underneath, loosen the slip nuts and take the P-trap off. Rinse it out, check the washers and refit it hand-tight plus a quarter turn.

4. Try a drain snake

If the clog is further down the line, feed a hand snake into the drain arm, turn it to catch the blockage and pull it back out.

Safety first. Shut off the water supply before opening any line, and leave gas, main service and permit work to a licensed plumber.

Parts for this job: Drains & Traps.