How to Unclog a Bathtub Drain Full of Hair

Most articles about clogged drains tell you to try a plunger. That’s fine advice, except a plunger is probably the worst tool for a hair clog, which is exactly what’s strangling 90% of bathtub drains. Hair doesn’t compress and release like a grease or soap blockage. It mats into a soaking wet felt pad and grabs onto everything it touches. You need to physically remove it, not push it deeper.

I’ve pulled hair clogs out of drains that weighed more than a golf ball and smelled like a wet dog had died in there. The first time I ran a wire hanger into a client’s tub drain and dragged out a fist-sized wad of hair, grease, and soap scum, I genuinely gagged. Now I keep a dedicated drain snake in the van. This is a solvable problem, and in most cases it takes about fifteen minutes once you know the right sequence.

Why Your Drain Looks Fine But Still Drains Slowly

Bathtub drains have a trap about 4 to 8 inches below the drain opening. Hair collects right at the stopper mechanism, at the top of the trap, and occasionally further down at the P-trap itself. The stopper is the first place to check and also the most ignored.

Most tubs use either a pop-up stopper (the kind you twist or push down with your foot) or a toe-touch stopper. Both unscrew counterclockwise. Some resist at first because of mineral deposits, but they will break free with hand pressure. Once you lift the stopper out, the hair wad is usually sitting right there on the crosshairs underneath it, matted around the pivot rod or just piled up in the drain opening.

Pull that out with your fingers, or use needle-nose pliers. It’s disgusting. Do it anyway.

If removing the stopper reveals clear pipe but the water still pools, the blockage is lower.

The Right Tools, Ranked by Effectiveness

Here’s how the common methods actually stack up for a hair-specific bathtub clog, based on two decades of dealing with them:

The Zip-It and its clones are basically a thin plastic stick covered in barbs, about 20 inches long. Rigid enough to push into a drain, flexible enough to navigate the curve. You insert it, twist it, and pull out a horrifying tangle of hair. Home Depot and Lowe’s both stock them near the drain cleaning supplies. In my experience, a $4 Zip-It solves around 70% of the bathtub hair clogs I’ve ever seen before I even need to reach for a real snake.

The Actual Step-by-Step

Before anything else, remove standing water from the tub with a cup or towel. You don’t want to be fishing around in grey water if you can avoid it.

Step 1: Remove the stopper. Twist it counterclockwise, or pull it straight up depending on the type. Some pop-up stoppers require you to unscrew a small set screw on the side with a flathead screwdriver. Put the stopper aside.

Step 2: Look into the drain with a flashlight. If you can see the hair wad, use needle-nose pliers or your gloved fingers to pull it out. Don’t push it further in.

Step 3: If nothing visible, insert the Zip-It (or a wire hanger bent into a small hook at one end). Angle it slightly to catch on the crosshairs in the drain pipe, rotate it, and pull up with steady pressure. Expect resistance. That resistance is your clog. Keep pulling.

Step 4: Repeat the insertion 3-4 times from slightly different angles. Each pass pulls more material out. Run hot water between passes to flush loose debris down.

Step 5: Test drainage. If water flows freely, you’re done. Reinstall the stopper, rinse the drain, and install a mesh cover going forward.

If you’ve done all that and the tub still drains slowly: the clog is past the P-trap, likely in the branch drain line or closer to the main stack. This is where you either rent a 25-foot drum auger (Ridgid makes a solid one, about $18/day at most equipment rental places) or call a plumber. Don’t keep throwing drain cleaner at it.

Worked example: A homeowner in Seattle had a tub that took 40+ minutes to drain after two bottles of Liquid-Plumr. Zip-It on the first pass pulled out a 6-inch hair mat from around the pop-up stopper pivot. Drain cleared completely. Total time: 8 minutes. Total cost: $4.

The Chemical Drain Cleaner Problem

Everyone grabs Drano first. I get it. It’s $10, it’s at every grocery store, and the commercials make it look like it just… fixes things.

Here’s what it actually does: sodium hydroxide (lye) or sulfuric acid generates heat and attacks organic material. It can partially dissolve hair over time, but the key word is partially. A dense, compacted hair mat wicks the chemical away before it can penetrate to the center. What you often end up with is a partially degraded hair ball that’s slippery and slightly more compacted but still blocking the drain, plus a pipe full of caustic chemical that now makes your DIY removal job more unpleasant and somewhat hazardous.

The other issue: PVC drain pipes handle this okay in the short term, but repeated chemical treatments accelerate joint degradation. If you have older metal pipes, the calculus shifts further against it. Green Gobbler Enzyme Drain Cleaner, which uses bacterial enzymes rather than caustic chemistry, is legitimately safer for pipes and better for ongoing maintenance, but it takes 6-8 hours to work and is not a good choice for an acute, full-stop clog.

My honest take: reach for the Zip-It before you ever open a bottle of drain cleaner for a hair clog. If the Zip-It fails, try a snake. Chemical treatment is a distant third option and often isn’t even necessary.

When to Call a Plumber

Three situations warrant a professional:

You’ve cleared the visible hair and snaked 15 feet into the drain and water still pools. That’s a blockage deeper in the system, possibly a partial obstruction at a fitting, a root intrusion if you’re in an older home, or a venting problem (which causes draining issues that look exactly like a clog but aren’t).

The drain backs up into other fixtures when you run the tub. This points to a main line problem, not a branch drain. Not a DIY fix.

You find slow drainage in multiple fixtures simultaneously. Same story: main line or venting. A licensed plumber with a drain camera runs about $250-$450 for an inspection and clear, and it’s worth every dollar to know what you’re actually dealing with before you rent equipment or start disassembling things.

Worked example: A reader emailed me describing a tub that had been snaked three times by a handyman with no lasting improvement. The actual problem was a partially collapsed ABS drain line under the slab, which no amount of snaking would fix. Camera inspection cost $310 and identified the section. Repair estimate: $1,400. Beats finding out after two more years of repeated service calls at $175 each.

What You’re Actually Paying

As of July 2026, here’s what things cost if you’re buying or hiring:

• Zip-It / DrainX barbed drain tool: $3–$8
• Pair of nitrile gloves (because obviously): $0.50 per pair in bulk, maybe $7 for a box
• Ridgid 25-ft Power Spin+ hand snake: $34 at Home Depot
• Professional drain cleaning (bathtub, standard): $150–$275 in most markets
• Professional with drain camera inspection: $275–$450
• Emergency/after-hours service call: add $75–$150 to any of the above

The DIY ceiling is around $45 including gloves, the Zip-It, and a decent hand snake you’ll use for years. That’s the case for doing it yourself, in numbers.

Prevention, Which You’ll Ignore Until You Do It Once

A stainless mesh drain hair catcher, the OXO Good Grips tub drain protector runs $11.99, sits over your drain and catches hair before it goes anywhere. You pull it out every few showers, toss the hair in the trash, rinse it, and you’re done. No clogs. No gross extraction sessions. No drain cleaner.

I thought these were annoying because they slow drainage slightly. Then I tested one for three months in a household with two people with long hair. Zero clogs. Drainage fine. I was wrong.

Worked example: Same household had previously spent $180 on two professional drain cleanings in 18 months. After installing a $12 OXO drain cover: no clogs in 14 months and counting. Payback period on the drain cover: approximately 23 days.

Sources

• PlumbingSupply.com Technical Library: Trade reference on drain types, stopper mechanisms, and P-trap configurations
• International Association of Certified Home Inspectors (InterNACHI): Standards for residential drain and waste system inspection
• Ridgid Tool Company product documentation: Specifications for drain snake equipment and usage guidelines
• EPA WaterSense Program: Background on residential plumbing systems and water efficiency
• Consumer Reports plumbing tools and chemical drain cleaner testing (various years): Independent performance testing of drain cleaning products

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