In this video, This Old House plumbing and heating contractor Richard Trethewey explains how to clear a clogged drain.
How to clear a clogged drain
- Clear toilet clogs with a plunger; press plunger down tight against bottom of bowl, then yank up sharply to pull clog free.
- For stubborn toilet clogs, use a closet auger; feed flexible cable into toilet bowl and crank handle to cut through clog.
- Use a hand snake to clear sink clogs; push the flexible cable down into the pipe, then turn the handle.
- Feed a little more of the cable down the pipe, and repeat until you remove the clog.
- Use plunger to clear common sink clogs; on double-bowl kitchen sinks, be sure to seal one drain when plunging the other.
- On lavatory sinks and bathtubs, plug overflow hole with damp rag to direct plunging power to the clog.
- When obstruction is in a large, main pipe, use an electric drain cleaner.
- Feed the cutting head into the pipe, then flip on the switch to start the cable turning.
- Continue to feed the cable and cutting head into the pipe until you cut through the clog.