How to Unclog a Bathtub Drain
To unclog a bathtub drain, pull the stopper, grab the hair knot wrapped around its shaft, then plunge with the overflow sealed or snake through the overflow plate. Most tub drain cleaning comes down to hair caught at the stopper, so the step people get stuck on is not the clog itself, it is getting the stopper out, which differs by type.
Why your bathtub drain clogs, and why the stopper is the hard part
Nearly every slow bathtub is a knot of shed hair bound with soap scum and hard-water minerals, collected on the stopper shaft and the crossbars right below it. The clog itself is easy to pull once you can reach it. The part that stalls people is getting the stopper out, because tubs use five different stopper mechanisms that each release a different way.
How do you remove a bathtub drain stopper?
Identify the stopper type first, then match the release motion: lift-and-turn, push-pull, toe-touch, and pop-up stoppers come out of the drain, while a trip-lever stopper pulls out through the overflow plate on the wall end of the tub. Spending sixty seconds on this saves you prying at a stopper that was never built to lift straight out.
| Stopper type | How to spot it | How to remove it |
|---|---|---|
| Lift-and-turn | Small knob on top of the cap that you twist to open and close | Turn it to the open position, hold the base steady, and unscrew the knob counterclockwise. If it only spins, pry off the top cap and loosen the hidden set screw with a small hex or flat screwdriver, then lift it out. |
| Push-pull | Cap you push down to close and pull up to open | Pull it to the open position, hold the base, and unthread the knob counterclockwise off the post. If the whole cap spins, grip the crossbar or shaft below with pliers while you turn. |
| Toe-touch (tip-toe) | Spring-loaded cap you tap with a toe to open and close | Press it to the open position, then unscrew the cap counterclockwise by hand. If a threaded shaft stays behind, grip it with pliers and back it out counterclockwise. |
| Pop-up (rocker arm) | Curved metal stopper linked to a flip lever on the overflow plate | Set the lever to open so the stopper stands up, then wiggle it and pull straight up. The curved rocker arm follows it out of the drain opening. |
| Trip-lever (internal plunger) | No stopper in the drain, just a flip lever on the overflow plate | Remove the two screws on the overflow plate, then pull the plate, lever, and the brass plunger linkage up and out through the overflow. Nothing lifts out of the drain opening itself. |
Whatever the type, set any screws in a cup, not on the tub edge, and never force a cracked plastic cap. If a metal stopper is corroded onto the threads, a drop of penetrating oil and ten minutes of patience beats snapping the shaft off inside the drain.
How to unclog a bathtub drain, step by step
Work from easiest to most involved and stop the moment the water runs free: bail the standing water, pull the stopper, pull the hair, plunge with the overflow sealed, then snake through the overflow. Most tub clogs give up at the hair-pull or plunge stage, long before you need a snake or the trap.
- Bail the standing water and pull the stopper. Scoop out most of the standing water so you can see and work, leaving just enough to seal a plunger later. Remove the stopper using the release for your type (see the table above).
- Pull the hair by hand, then with a zip tool. Glove up, shine a light on the crossbars, and pull the knot wrapped around the stopper shaft and bars. Then feed a barbed plastic zip tool (sold as a Zip-It or drain-hair strip) six to eight inches down, twist, and draw it out slowly so the barbs carry the hair with them. Repeat from a few angles.
- Plunge with the overflow sealed. This is the tub-specific step. Jam a wet rag or a strip of tape over the overflow plate so the plunger builds pressure instead of pushing air up the overflow. Smear petroleum jelly on the cup rim, add enough water to cover the cup, and push and pull sharply 15 to 20 times.
- Try a baking soda and vinegar flush. Pour about half a cup of baking soda, then half a cup of white vinegar, cover the drain, wait 15 minutes, and flush with hot water. This is maintenance, not muscle, so use it to finish off a loosened clog, not to break a packed hairball.
- Snake through the overflow. If water still stalls, take the overflow plate off and feed a hand auger down the overflow tube. Crank the handle clockwise when you hit resistance to bite the clog, then pull it back out. Flush with hot water and repeat if the tub is still slow.
- Pull the P-trap as a last resort. If the clog keeps returning or sits below the trap, access the trap through a panel, a basement, or a crawlspace, put a bucket under it, loosen the slip nuts, and clean it out. Check the washers before you reassemble and run water to watch for drips.
Why you snake through the overflow, not the drain
The tub drain opening turns almost ninety degrees a few inches down, so a cable fed straight there tends to catch, kink, or claw the finish. The overflow tube drops into the same P-trap on a much straighter line. Pull the overflow plate, feed the auger down that tube, and you reach the clog with far less fight and less risk to the pipe.
Skip the chemical drain cleaner
Caustic and acid drain cleaners are the worst choice for a tub. They make heat that can warp PVC and ABS, which soften near 140 degrees Fahrenheit, pit older metal traps, and dull or craze an acrylic or porcelain finish. On a hair clog they rarely beat a barbed tool anyway, and if the clog holds you are left with a tub of caustic water that makes the next plunge or snake dangerous.
If you still want to reach for a bottle, an enzyme product is gentler on pipes than a caustic one, though slow. Our guide to which drain cleaners actually work covers what is safe on tub finishes and what to keep away from older metal traps.
Tub vs shower: what is different
A tub adds two things a shower does not: an overflow, which you seal to plunge and snake through to clear, and a stopper mechanism instead of a flat strainer. The clog is the same hair-and-soap knot in both. If you are clearing a stall shower instead, see our shower drain guide. For sinks, toilets, and the full method by fixture, use the general drain-clearing guide.
When should you call a plumber?
Call a pro when the clog returns within days, when the tub backs up as you flush the toilet or run the sink, when more than one fixture drains slowly, or when a snake brings up dark sludge or roots. Those point to a branch or main-line problem past the tub trap, where forcing a hand tool can crack older pipe.
- The tub gurgles or backs up when you flush the toilet or drain the sink, which means the blockage is in a shared line, not the tub.
- More than one fixture is slow at the same time, a classic main-line sign.
- A snake brings up roots or dark sludge, which points to root intrusion or a bellied pipe a camera should diagnose.
- The same tub clogs every few weeks despite clearing the hair and the trap.
Prevent the next tub clog
A cheap mesh or silicone hair catcher over the drain stops most repeat clogs, since hair is the anchor everything else sticks to. Empty it into the trash, not the drain, and flush the tub with hot water now and then. These habits keep the stopper and trap clear far better than any monthly chemical pour.
- Fit a hair catcher over the drain and clean it after long baths.
- Brush out loose hair before a bath, since one wash sheds dozens of strands.
- Pull the stopper and clear the shaft every month or two before a slow drain becomes a full stoppage.
- Run hot tap water for 30 seconds after a bath to move soap scum along.
Frequently asked questions
Why is my bathtub not draining but the toilet is fine?
Almost always a hair clog local to the tub. If the toilet, sink, and other drains still run fine, the blockage sits in the tub’s own trap or stopper, not the main line. Pull the stopper, clear the hair, and plunge. If several fixtures back up at once, that points to a main-line problem and a plumber.
How do you unclog a bathtub drain full of hair?
Remove the stopper first, since most tub hair wraps around the stopper shaft and the crossbars just below it. Put on gloves and pull the visible knot, then push a barbed plastic zip tool six to eight inches down, twist, and draw it out slowly. Repeat from a few angles. Most tub hair clogs clear this way in under fifteen minutes.
Can you snake a tub drain through the overflow?
Yes, and it is the right way to do it. Unscrew the overflow plate on the wall end of the tub, then feed a hand auger down the overflow tube. That path is a straighter shot to the trap than the drain opening, which turns sharply and can catch or kink the cable. Crank at resistance, then pull the clog back out.
How do I remove a stuck bathtub stopper?
It depends on the type. Lift-and-turn and toe-touch stoppers usually unthread counterclockwise; pry off the cap to find a hidden set screw if the knob just spins. Trip-lever stoppers come out through the overflow plate, not the drain: remove the two plate screws and lift the whole linkage out. Grip stubborn shafts with pliers, and never force a cracked plastic cap.
Should I use Drano in a bathtub?
Better not to. Caustic drain cleaners generate heat that can warp PVC and ABS, corrode older metal, and dull the tub’s finish, and they rarely beat a two-dollar hair tool on a hair clog. If one fails, you are left with a tub of caustic water that makes plunging or snaking dangerous. Tell any plumber who works on it that you used one.
Does baking soda and vinegar unclog a tub drain?
Only on light buildup. The fizzing loosens soap scum and freshens a smelly drain, but it has almost no force against a packed hairball. Use it as a follow-up after you have pulled the hair out mechanically: half a cup of baking soda, half a cup of white vinegar, wait fifteen minutes, then flush with hot water.
Last reviewed: September 2026.