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TPhoenix homeowner dealing with a slow shower drain before plumbing repair

My Bathroom Shower Drain Is Slow

July 21, 2025

My Bathroom Shower Drain Is Slow. What Do I Do?

There’s nothing quite like starting your day with a warm shower… until you realize you’re standing ankle-deep in water that just isn’t going anywhere. A slow shower drain is one of the most common frustrations we hear about at Robins Plumbing—and the good news? In many cases, it’s totally fixable. At Robins Plumbing, we speak homeowner, not plumber. That means we’ll explain what’s happening, why it’s happening, and what you can do about it—whether you’re ready to DIY or want to call in the pros. Let’s dive into it (not literally, please). \

Common Causes of a Slow Shower Drain

Hair Buildup
This is the big one. Hair is the #1 reason shower drains slow down. It gets caught in the drain cover, clumps inside the p-trap, and grabs soap scum and debris along the way.

Soap Scum + Product Gunk
Many body washes and shampoos leave behind a waxy film that builds up over time. Combine that with hair and mineral-rich Phoenix water, and you’ve got a sticky mess.

Misuse of the Drain
Flushing or rinsing things like pet fur, scrub pads, bath bombs with glitter, or other debris down your tub or shower can contribute to blockages. Shampoo caps, toys, even jewelry are common causes for shower and tub stoppages.

Old Plumbing Pipes
If your home’s plumbing is several decades old, corrosion or buildup inside the pipes can restrict flow—even if you’re doing everything right.

Ventilation Problems
Plumbing vents regulate air pressure to help water drain properly. If they’re blocked, you might hear gurgling—and notice the water draining much more slowly than usual.

DIY Solutions for a Slow Shower Drain

We always encourage homeowners to try the safe stuff first. Here’s what you can do before reaching for the phone:

Remove the Drain Cover

Check for visible hair or gunk just below the cover. Use gloves and a flashlight—or a zip-it tool—to pull the blockage out.

Try a Drain Snake or Zip-It Tool

These inexpensive tools are available at most hardware stores and can pull up a surprising amount of hair and goo. (Trust us, it’s satisfying and gross at the same time.)

Pour Boiling Water (Cautiously)

Boiling water can break up grease and soap scum. Pour slowly in stages. Do not use this method if your pipes are old, as it could damage them.

Avoid Chemical Drain Cleaners

It’s tempting, we know—but harsh chemicals can damage your pipes and harm the environment. Plus, they don’t always fix the root of the problem. If a clog is physical (like hair), liquid cleaner won’t always get it done.

When to Call a Professional

If you’ve tried DIY options and your shower is still draining slowly—or you notice a foul odor, water backing up in other fixtures, or repeated clogs—it’s time to bring in a pro.

At Robins Plumbing, our expert techs can:

Professionally clear your drain with the right tools

Inspect your drain line and plumbing condition

Help you prevent future clogs with honest, homeowner-friendly tips

We don’t just clear drains—we educate and empower you to keep them flowing.

How to Prevent a Slow Shower Drain in the First Place

Use a Drain Screen
This simple device catches hair before it enters the drain.

Don’t Rinse Random Stuff Down the Drain
Keep pet hair, sand, glitter, and heavy soaps away.

Schedule Routine Maintenance
A quick check-in from your favorite Phoenix plumber can save you from bigger headaches later.

Services in Phoenix & Beyond

When you’ve found yourself in need of 24 hour plumbing services in the Phoenix, Glendale, Scottsdale, or Chandler area, you can trust Robins Plumbing. We will provide you with prompt and expert care!  Contact our team today! In addition to our slab leak repairs, we also offer a variety of residential and commercial plumbing services, including: drain cleaning, water heater repair and replacement, sewer camera inspection and locating, backflow prevention, commercial and residential jetting, water treatments, and more. Visit our reviews online to see what others have to say about our local plumbing company!