What is usually in there

Hair on its own would wash through, but soap, conditioner and body oils coat it and make it sticky. It wraps around the pop-up stopper rod in a sink or the crossbars of a tub strainer and collects more with every use. Hard water adds mineral scale that roughens the inside of the trap and helps the mat hold together.

Because these clogs usually sit within the first foot or two of the drain, they respond well to hand tools. What they do not respond well to is chemical openers, which tend to melt a path through the top of the clog and leave the rest.

Clearing a bathroom sink

  1. Pull the stopper.Many pop-up stoppers lift straight out; others release by loosening the pivot nut behind the drain under the sink.
  2. Clean the stopper and opening.Remove the hair and slime by hand or with a plastic barbed drain strip.
  3. Check the trap.With a bucket underneath, remove the P-trap and clear anything inside, then reassemble hand-tight and check for drips.
  4. Test.Fill the basin partway and release it. A clean drain empties in a steady swirl.

Tubs and showers

Drain typeWhere hair collectsHow to reach it
Tub with trip leverLinkage plunger behind the overflow plateRemove the overflow cover and pull the linkage out to clean
Tub with toe-touch or lift stopperUnder the stopper and strainerUnscrew the stopper, then clean the strainer crossbars
Shower with screw-in strainerJust below the strainerUnscrew the strainer and use a barbed strip
Shower with snap-in coverBelow the coverPry the cover gently and clean below

Keep it from coming back

  • Use a hair catcher on tub and shower drains and empty it often.
  • Clean sink stoppers every few months, before they slow down.
  • Rinse drains with hot tap water after using heavy conditioners or oils.
  • Wipe away mineral crust from strainers so hair has less to grip.

If you call a plumber

  1. Is the clog in the trap or further into the branch line?
  2. Will you go through the drain opening, the overflow or a cleanout?
  3. Do the sink and tub share a branch that should be cleared together?

Common questions

Is a plastic barbed drain strip safe for old pipes?

Yes. It only reaches a short distance and does not cut, so it is gentle on older fixtures and traps.

Why does my sink drain fine until it fills up?

A partial hair mat lets a trickle through. Once the volume increases, the restricted opening cannot keep up, so the basin fills.

Can I use a small hand auger?

Yes, a quarter-inch hand auger works for sink and tub traps. Feed it gently, and stop if it binds rather than forcing it through old fittings.

General information for Stanton, not a quote or professional advice. In an emergency, call 911.