| Quick Answer A clogged bathtub drain is almost always caused by hair tangled with soap scum. To fix it, remove the drain stopper, pull out the hair with your fingers or a plastic drain-cleaning tool (zip-it), then flush with hot water and dish soap. For deeper clogs, use baking soda and vinegar, a plunger, or a hand drain snake. If the tub backs up when you flush the toilet, or several drains are slow, the problem is likely further down the line and you should call a plumber. |
A tub that drains slowly turns every shower into a standing-water situation. The good news is that most bathtub clogs sit within the first foot or two of the drain, right under the stopper, so they’re very fixable without harsh chemicals.
Why Bathtub Drains Clog
This is a general guide based on common plumbing experience, not a measured study.
Hair and soap scum work together. Hair catches on the stopper and crossbars, and soap scum glues it into a dense mat. In South Florida, hard water adds mineral scale that makes the buildup even tougher, and beach sand rinsed off after a day at the beach can settle in the trap.
Which Fix Should You Try?
| Method | Best For | Time | Difficulty |
| 1. Remove the stopper and pull out hair | Most tub clogs | 10–15 min | Easy |
| 2. Plastic drain-cleaning tool | Hair clogs just below the drain | 5 min | Easy |
| 3. Hot water and dish soap | Soap scum buildup | 10 min | Easy |
| 4. Baking soda and vinegar | Mild clogs and odors | 30–60 min | Easy |
| 5. Plunger | Clogs in the trap | 10 min | Easy |
| 6. Hand drain snake | Deeper clogs past the trap | 15–20 min | Medium |
| 7. Clean the overflow and linkage | Trip-lever tubs that drain slowly | 20 min | Medium |
Step 1: Remove the Drain Stopper
You’ll need to remove the stopper to reach the clog. Here’s how for the most common types:
| Stopper Type | How to Remove It |
| Lift-and-turn | Lift the knob, turn it counterclockwise to unscrew |
| Toe-touch / push-pull | Unscrew the cap, then unscrew the post underneath |
| Push-to-close (pop-up) | Hold the body and unscrew it counterclockwise |
| Trip lever (lever on overflow plate) | Unscrew the overflow plate and pull out the linkage |
| Flip-it style | Twist and pull straight up |
Fix 1: Pull Out the Hair
With the stopper out, put on gloves and remove any visible hair with your fingers or needle-nose pliers. You’ll often find a large hair clump wrapped around the crossbars under the stopper.
Fix 2: Use a Plastic Drain-Cleaning Tool
A barbed plastic strip, often sold as a “zip-it” tool, is inexpensive and very effective. Push it into the drain, twist, and pull out slowly. The barbs grab hair that’s just out of reach.
Fix 3: Hot Water and Dish Soap
Squirt dish soap into the drain, then pour a kettle of very hot water down it. This helps dissolve soap scum. With PVC drain pipes, use very hot tap water rather than boiling water.
Fix 4: Baking Soda and Vinegar
- Pour ½ cup of baking soda into the drain.
- Add 1 cup of white vinegar and cover the drain.
- Wait 30 minutes to an hour.
- Flush with hot water.
This works best on light buildup and odors, not solid hair clogs.
Fix 5: Use a Plunger
Fill the tub with a few inches of water so the plunger cup is covered. Block the overflow opening with a wet rag, otherwise the pressure escapes through it. Plunge firmly 10 to 15 times, then check the drain.
Fix 6: Use a Hand Drain Snake
If the clog is past the trap, a hand drain snake (auger) can reach it.
- Feed the snake into the drain, or through the overflow opening for trip-lever tubs.
- Turn the handle as you push.
- When you feel resistance, keep turning to break up or hook the clog.
- Pull it out slowly, clean the cable, and flush with hot water.
Fix 7: Clean the Overflow and Trip-Lever Linkage
On tubs with a lever on the overflow plate, the plunger and linkage behind the plate can collect hair and scale. Unscrew the plate, pull out the linkage, clean it, and adjust it if the stopper isn’t opening fully.
Why to Avoid Chemical Drain Cleaners
Harsh chemical drain cleaners can damage older pipes, finishes, and seals, and they don’t always dissolve dense hair clogs. If they fail, you’re left with a tub full of caustic water. Mechanical methods are safer and usually more effective. For routine maintenance, enzyme cleaners are gentler.
When a Slow Tub Means a Bigger Problem
| Warning Sign | What It May Mean |
| Tub fills with water when you flush the toilet | Main sewer line clog |
| Tub and sink are both slow | Clog in a shared branch line |
| Gurgling from the tub drain | Venting issue or downstream blockage |
| Sewage smell from the drain | Sewer line or venting issue |
| Clog returns within weeks | Buildup deeper in the line, or a pipe problem |
Sewer backups often show up first in the bathtub, because it’s one of the lowest drains in the home. Gurgling drains can also be a plumbing vent problem. See our guide to the plumbing vent diagram for how venting works. For deeper blockages, professional drain cleaning or hydro jetting clears the full line.
How to Prevent Bathtub Clogs
- Install a hair catcher over the drain and empty it after showers.
- Brush your hair before showering to remove loose strands.
- Rinse sand off outside or in an outdoor shower after the beach.
- Flush the drain with hot water once a week.
- Clean the stopper every few weeks.
- Don’t wash pets in the tub without a hair catcher.
Need Your Tub Drain Cleared?
A to Z Statewide Plumbing clears bathtub, shower, and main line clogs for homes and condos across Broward and Miami-Dade, including Fort Lauderdale, Hollywood, Aventura, Miami Beach, Pembroke Pines, and Miami. We also handle shower valve and diverter repairs. Call (954) 981-2133 or contact us online.
| Key Takeaways ✔ Hair mixed with soap scum causes most bathtub clogs. ✔ Remove the stopper and pull out the hair before trying anything else. ✔ A plastic drain tool or hand snake handles most deeper clogs. ✔ Block the overflow opening when plunging a tub. ✔ If the tub backs up when you flush, the main sewer line is likely clogged. |
Frequently Asked Questions
How do I unclog a bathtub drain full of hair?
Remove the stopper, then pull the hair out with gloved fingers, needle-nose pliers, or a plastic drain-cleaning tool. Flush with hot water afterward.
Why is my bathtub draining slowly?
Usually hair and soap scum buildup just below the stopper. A partially closed stopper or dirty trip-lever linkage can also slow draining.
Does baking soda and vinegar unclog a bathtub drain?
It can help with light buildup and odors, but it usually won’t break up a dense hair clog. Removing the hair mechanically works better.
Why does my bathtub fill up when I flush the toilet?
That usually means a clog in the main sewer line. Water from the toilet can’t get past the blockage, so it comes up through the tub drain. Call a plumber.
How do I remove a bathtub drain stopper?
It depends on the type. Lift-and-turn stoppers unscrew counterclockwise, toe-touch stoppers have a cap that unscrews, and trip-lever stoppers are removed through the overflow plate.
