How to Fix a Slow-Draining Bathtub (Step-by-Step Guide)

Is your bathtub draining slower than it used to? You’re not alone. A slow drain is one of the most common plumbing problems in any home — and the fix is usually simpler than you think. In this guide, we’ll walk you through exactly how to clear a clogged bathtub drain yourself.

Why Is My Bathtub Draining Slowly?

The most common reason is hair buildup. At the bottom of your drain, there’s a cross-section where hair gets caught and collects over time. This is especially common in tubs that double as showers — and even more so if anyone with long hair uses it regularly.

Over time, that trapped hair mixes with soap scum and turns into a slimy blockage that slows everything down. The good news? It’s easy to remove.

What You'll Need

You don’t need expensive tools. Just grab:

  • A flathead screwdriver
  • A wire coat hanger (bent into a hook) or a plastic drain snake/hair removal tool (available at dollar stores and hardware stores)
  • A pair of needle-nose pliers
  • Paper towels or a trash bag (it gets messy!)

Step 1: Remove the Drain Stopper

If your drain has a pop-up assembly with a knob on top, unscrew the knob first. Underneath, you’ll find another piece — unscrew that too using your flathead screwdriver. If it’s tight, use pliers to loosen it.

Once removed, you’ll have clear access to the cross-section at the bottom of the drain where all the buildup collects.

Close-up of a plumber using channel lock pliers to unscrew and remove a metal bathtub drain stopper during a DIY drain cleaning project.

Step 2: Pull Out the Hair Clog

Take a look inside the drain. If you can see large pieces of hair or debris, pull them out by hand first.

Then use your hooked coat hanger or plastic drain tool to fish out the rest. Insert it into the drain, twist, and pull. Don’t be surprised by what comes out — it can be a lot more than you expect, and yes, it will smell.

Repeat this several times until nothing more is coming out.

Pro tip: Be gentle with plastic drain tools — they can snap if forced. If a piece breaks off inside the drain, use needle-nose pliers to carefully retrieve it before continuing.

Step 3: Rinse and Reassemble

Once you’ve removed all the buildup you can see, turn the water back on and let it run. You should notice the water draining much more freely already.

Reassemble the drain stopper by screwing the inner piece back in, then replacing the knob on top.


 

Step 4: Test the Drain

Fill your tub or use a measured bucket of water and time how long it takes to drain. In most cases, you’ll see a dramatic improvement — sometimes shaving 30 to 40 seconds off the drain time just from one cleaning session.

Still Draining Slowly? Here's What to Check Next

If cleaning the drain didn’t fully solve the problem, the blockage may be further down the line. Here are two things to look into:

  • Use a hand auger — A small, manual drain auger (also called a drain snake) can reach deeper into the pipe to break up or pull out clogs in the P-trap or further down the drain system.
  • Check the overflow lever — If your tub has a lever on the overflow plate, something may be stuck on the internal plug, or it may need a simple adjustment.

If neither of these solves it, it’s time to call a professional plumber. A deeper clog or pipe issue will need proper tools and expertise to fix safely.

How to Prevent a Slow Drain in the Future

A little maintenance goes a long way:

  • Use a drain hair catcher — This simple tool sits over your drain and stops hair before it goes down
  • Flush with hot water weekly — Helps dissolve soap scum before it builds up
  • Clean your drain stopper monthly — A quick wipe-down keeps things flowing
  • Book a professional drain cleaning once a year — Especially for households with heavy shower use

Need a Plumber You Can Trust?

If your bathtub is still giving you trouble after trying these steps, our licensed plumbers are here to help. We handle everything from stubborn drain clogs to full pipe inspections — fast, affordable, and done right.

Contact us today and get your tub draining like new again.

FAQs

Yes, in most cases. Removing the drain stopper and using a drain snake or hooked wire to pull out hair and debris is something most homeowners can do without special tools. However, if the clog is deeper in the pipe or keeps coming back, it’s best to call a professional plumber.

Yes, in most cases. Removing the drain stopper and using a drain snake or hooked wire to pull out hair and debris is something most homeowners can do without special tools. However, if the clog is deeper in the pipe or keeps coming back, it’s best to call a professional plumber.

If you’ve cleaned the drain stopper area and the tub is still draining slowly, the blockage may be in the P-trap or further down the drain system. Signs include gurgling sounds, bad odors, or multiple drains in your home draining slowly at the same time.

Chemical drain cleaners can work on mild clogs but should be used sparingly. Overuse can corrode and damage your pipes over time — especially in older homes. We recommend trying a drain snake or natural methods like baking soda and vinegar first.

A quick clean every month helps prevent major buildup. Installing a hair catcher over the drain is one of the easiest ways to reduce how often clogs form. For a deeper clean, flushing the drain with hot water weekly is a great habit.

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