Is this a do-it-yourself clog?
- IfOne fixture, slow or stopped, everything else normalThenReasonable to try the steps below.
- IfSeveral fixtures slow, or water rises in the tub when you flushThenMain line. Stop using water and call a plumber.
- IfSewage has come into the houseThenDo not try to clear it yourself. Keep people away and get the main line cleared.
- IfAn object went down a toiletThenSkip the plunger; use a closet auger or call.
- IfFittings are corroded, cracked or behind a wallThenLeave them for a plumber.
Tools for the job
| Tool | Good for | Watch out for |
|---|---|---|
| Cup plunger | Sinks, tubs and showers | Seal the overflow and any second basin first |
| Flange plunger | Toilets | Keep it under water; plunge slowly at first to avoid splashing |
| Plastic drain strip | Hair just below a sink or tub stopper | Only reaches a few inches |
| Hand auger | Sink and tub traps and the first few feet of line | Feed gently; do not force it around bends |
| Closet auger | Toilet trapways | Use the sleeve to protect the porcelain |
A sensible order to try things
- Clean what you can see.Remove the stopper, strainer or grate and pull out hair and debris.
- Plunge properly.Cover the plunger with a little water, seal the overflow, and use steady strokes before pulling up sharply.
- Open the trap.On a sink, put a bucket under the P-trap, loosen the slip nuts by hand if possible, and clean out the trap.
- Try a hand auger.Feed the cable into the trap arm or drain, turning slowly. Pull it back and clean it once you feel it catch.
- Test and stop.Run water. If it still drains slowly, the clog is further down than these tools reach.
Mechanical clearing vs. chemical openers
Plunger and auger
- Removes or breaks up the clog directly
- No chemical left in the pipe or the basin
- You can tell whether it worked
- Safe for whoever works on the drain next
Chemical drain opener
- Often sits on top of the clog in standing water
- Can splash or bubble back out of the drain
- Can be hard on older pipe, trap seals and finishes
- Leaves a hazard for a plumber who has to open the line
Where most people should stop
Renting a large drain machine for a main line is a different job from clearing a sink. Motorized cables can kink, whip and catch on roots or broken pipe, and they can injure hands and wrists. A cable stuck in an old lateral turns an ordinary clog into a bigger repair.
If the clog is beyond the trap, keeps coming back, or involves more than one fixture, that is the point to hand it to a licensed plumber whose license you have checked at cslb.ca.gov.
Common questions
Does baking soda and vinegar clear clogs?
It fizzes and may help freshen a slightly slow drain, but it does not have the force to clear a real clog. A plunger or auger is more effective.
Can I rent a drain snake for the main line?
You can, but motorized machines carry real injury and pipe-damage risks. For a main line, especially an older one, a plumber is the safer choice.
Why did plunging make it worse?
If the clog is in the main line, plunging one fixture can push water and debris out another. Stop and check whether other drains are affected.
General information for Cypress, not a quote or professional advice. In an emergency, call 911.