Quick answer
Turn off the water supply, remove the drain cover, and use a plunger or drain snake to clear the clog. If the clog persists, try a commercial drain cleaner or call a plumber.
Confirm the symptom
- Water pools in the shower after use
- Drain makes gurgling sounds when draining
- Slow drainage even after cleaning the drain cover
- Water takes longer to drain than usual
- Foul odors coming from the drain
Tools and prep
- Rubber gloves
- Plunger (shower or sink type)
- Drain snake or wire hanger
- Bucket
- Commercial drain cleaner (optional)
- Old towel or cloth
- Adjustable wrench (if needed for drain cover removal)
- Turn off water supply to the shower
Step-by-step troubleshooting
- Turn Off Water SupplyDo: Locate the water shut-off valve for your shower and turn it off.Observe: Water should stop flowing from the showerhead.Means: You can now work safely without water running.Next: Remove drain cover
- Remove Drain CoverDo: Use an adjustable wrench or your hands to gently remove the drain cover. Place a towel underneath to catch any water.Observe: The drain cover should come off easily if not stuck.Means: Access to the drain is now available.Next: Clear visible debris
- Clear Visible DebrisDo: Use a small brush or your fingers (wearing gloves) to remove hair, soap scum, and other debris from the drain opening.Observe: The drain opening should be free of visible blockages.Means: This removes surface-level clogs.Next: Use a plunger
- Use a PlungerDo: Place the plunger over the drain opening and pump up and down for about 20–30 seconds.Observe: Water may start to drain more freely.Means: The plunger may dislodge the clog.Next: Test drainage
- Test DrainageDo: Turn the water supply back on briefly and let water run into the shower.Observe: Water should drain more quickly than before.Means: The clog may be partially cleared.Next: Use a drain snake
- Use a Drain SnakeDo: Insert the drain snake into the drain and push it down until you feel resistance. Rotate the handle to break up or hook the clog.Observe: You may feel or see debris being pulled out.Means: The clog is likely deeper in the pipe.Next: Flush with water
- Flush with WaterDo: Run hot water down the drain for 1–2 minutes to flush out any remaining debris.Observe: Water should drain smoothly without backing up.Means: The drain is likely clear.Next: Final check
- Final CheckDo: Let the shower sit for a few hours and check if water still drains properly.Observe: No standing water and consistent drainage.Means: The issue is resolved.Next: Done
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Hair and soap scum buildup Hair and soap can accumulate over time, creating a clog in the drain. | Common | Easy | Drain snake |
| Foreign objects Small items like shampoo bottles, toys, or jewelry can accidentally fall into the drain. | Sometimes | Easy–Medium | Tweezers or pliers |
| Mineral deposits Hard water can cause mineral buildup that restricts water flow. | Common | Easy–Medium | Vinegar or commercial cleaner |
| Clogged P-trap The P-shaped pipe under the drain can become clogged with debris. | Common | Medium | P-trap cleaning kit |
| Tree roots in sewer line Tree roots can infiltrate sewer lines and block water flow. | Rare | Hard | Professional plumbing service |
| Improper slope in drain pipe If the drain pipe was installed with an incorrect slope, water may not drain properly. | Rare | Hard | Professional plumbing service |
| Blocked vent pipe A blocked vent pipe can cause slow drainage due to improper air pressure in the plumbing system. | Sometimes | Hard | Professional plumbing service |
| Corroded or damaged pipes Old or corroded pipes can restrict water flow or collapse partially. | Rare | Hard | Pipe replacement or professional plumbing service |
Parts matching
Common parts needed to fix a shower not draining properly include:
- Drain snake or auger
- P-trap cleaning kit
- Commercial drain cleaner
- Rubber gloves
- Adjustable wrench
- Vinegar and baking soda
- Plunger
For recurring clogs, consider installing a drain strainer to catch hair and debris before they enter the drain.
When to call a professional
- The clog persists after using a drain snake and commercial cleaner
- You suspect tree roots or a blocked vent pipe
- You hear gurgling sounds from other drains or toilets
- Water backs up into other fixtures
- You notice a foul odor that won't go away
- You're unsure about working with plumbing systems
- You see signs of water damage or mold near the drain
FAQ
How often should I clean my shower drain?
Clean your shower drain at least once a month to prevent buildup. More frequent cleaning may be needed in households with hard water or heavy use.
Can I use bleach to clean a clogged shower drain?
Bleach can help with odors but is not effective for clearing clogs. It may also damage pipes over time. Use a commercial drain cleaner or a mixture of vinegar and baking soda instead.
What if the drain cover is stuck and won't come off?
Apply a penetrating oil like WD-40 around the edges of the drain cover and let it sit for 15–30 minutes. Use an adjustable wrench with a towel for grip to gently loosen it.
Why does my shower drain smell bad even after cleaning?
A bad odor may indicate a deeper clog or a blocked vent pipe. Try using a drain cleaner or call a plumber to inspect the system.
Is it normal for my shower to drain slowly after a long period of not using it?
Yes, stagnant water can lead to minor clogs. Run hot water through the drain for a few minutes to clear it. If it still drains slowly, follow the troubleshooting steps.