How to Unclog a Shower Drain: Hair Clogs, Step by Step
How to unclog a shower drain: lift the hair, flush with hot water, try baking soda and vinegar, then use a drain snake, plus what a lasting clog means.
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How to unclog a shower drain: nearly every shower clog is a plug of hair and soap held together at the top of the drain, within reach of a cheap tool. Pull out the hair first, flush the drain with hot water, and only then try a plunger or snake. Skip chemical cleaners; they are slow on hair.
How to unclog a shower drain: the quick answer
Most people can clear a shower drain in 15 to 30 minutes with a hook or barbed strip and hot water. If water still stands after that, a plunger and a hand-cranked snake handle the rest. If the sink or tub nearby also drains slowly, the clog is deeper than the shower.
| Quick facts: how to unclog a shower drain | |
|---|---|
| Time needed | 15 to 30 minutes |
| Tools | Screwdriver, barbed plastic strip or hook, gloves, plunger, hand snake |
| Difficulty | Easy |
| Avoid | Chemical cleaners, boiling water on PVC pipes |
How to unclog a shower drain, in order
- Remove the cover. Pry it up or unscrew it. Many have a single centre screw.
- Pull out the hair. Use a plastic drain-cleaning strip with barbs, a bent coat hanger with a small hook, or needle-nose pliers. Wear gloves. Most clogs sit in the first few inches.
- Flush with hot water. Run the hottest tap water for a minute. Metal drains can take a kettle of very hot, but not boiling, water. If your drain is PVC, stay with hot tap water.
- Try baking soda and vinegar. Pour in half a cup of baking soda, then a cup of vinegar, plug the drain and wait about 30 minutes. Flush with hot water. This breaks up soap film better than it moves hair.
- Plunge it. Block the overflow opening with a damp cloth if the shower has one, add enough water to cover the plunger cup, and plunge firmly in short strokes.
- Use a drain snake. A hand-cranked snake reaches the trap. Feed it in until you feel resistance, crank, pull back, and clean off what comes out.
Why shower drains clog
Hair and soap scum do most of the damage, particularly in a drain with a slow flow. Hard water makes soap film sticky, and body oil binds it all together. A shower whose drain smells as well as drains slowly probably has build-up in the trap. If you want to know how to unclog a shower drain for good, remove that build-up regularly rather than waiting for a full blockage. In a home with several long-haired users, even a weekly pull of the hair catcher is worth the thirty seconds it takes.
Which tool for which clog
| Tool | Best for | Limits |
|---|---|---|
| Barbed plastic strip | Hair near the top of the drain | Cannot reach deep |
| Plunger | Soft clogs and soap build-up | Needs a sealed overflow |
| Hand-cranked snake | Clogs in the trap | Can scratch fixtures if forced |
| Enzyme cleaner | Slow, smelly drains | Slow, will not clear a full blockage |
Different drain types need different care
A tub-style stopper drain hides its clog under the lever or pop-up assembly, so unscrew the stopper and clean it before anything else. A tiled shower with a square or linear drain often has a removable strainer plate. Cheap plastic drains crack if forced, so use gentle, steady pressure with any tool you push down the pipe.
When it is more than a hair clog
| Symptom | What it points to | Next step |
|---|---|---|
| Only the shower is slow | A clog in this fixture's trap | Steps above |
| Sink or tub nearby also drains slowly | Branch drain clog | Snake the branch, or call a plumber |
| Gurgling from other drains when the shower runs | Vent or main drain problem | Call a plumber |
| Water or sewage appears in a floor drain | Main line backup | Stop using water and call a plumber now |
Prevention
Fit a mesh hair catcher, empty it after each shower, and flush the drain with hot water weekly. A monthly enzyme-based drain treatment helps reduce build-up in the trap, and a quick pull with a hair strip every few weeks keeps the top of the drain clear. Rinse the drain with hot water after washing hair, and wipe the cover so soap film does not collect.
Related reading
- How to Unclog a Kitchen Sink: Plunger, Trap and Snake
- Sewer Smell in House: Causes, Fixes and Safety Warnings
- Practical Guide: How to Unclog a House Drain
- Plumber cost to unclog drain: What Drives the Price and How to Get a Fair Quote
Browse all plumbing guides, or find a plumber in your city from the plumbing directory.
Frequently asked questions
How to unclog a shower drain without chemicals?
Lift the cover, pull out the hair with a barbed plastic strip or hooked wire, flush with hot tap water, then use baking soda and vinegar. If water still stands, use a plunger and finish with a hand-cranked drain snake to clear the trap.
Why does my shower drain smell as well as drain slowly?
A smell and a slow drain together usually mean decaying hair and soap are caught in the trap. Cleaning the hair out and flushing with hot water normally cures both problems. A lasting smell can also point to a dry trap.
Can I use a plunger on a shower drain?
Yes. Cover the overflow opening, if there is one, with a wet cloth. Add enough water to cover the plunger cup, then plunge in short, firm strokes. It works best after you have removed the hair at the top of the drain.
Is baking soda and vinegar enough to unclog a shower drain?
It helps break up soap film and light build-up but rarely clears a hair clog by itself. Remove the hair by hand or with a snake first, then use baking soda and vinegar to flush away what is left behind.
Can boiling water unclog a shower drain?
Only with care. Boiling water can soften and loosen PVC pipes and joints, so use very hot tap water in plastic plumbing. Metal drains tolerate hotter water, but pouring it will not remove a dense plug of hair.
How often should I clean a shower drain?
Pull the hair from the top of the drain every few weeks and flush with hot water weekly. A mesh catcher cuts the work. Homes with long hair or hard water usually need cleaning more often to stop clogs forming.
Do chemical drain cleaners work on shower drains?
They are slow on hair and can damage older pipes, seals and fixtures. They also leave harsh liquid standing in the pan, which is unsafe if you then need to plunge or snake. Try hand tools first for a safer result.
When is a slow shower drain a plumber problem?
When more than one fixture drains slowly, other drains gurgle, water backs up into a tub or floor drain, or a plunger and snake do not help. These signs point to the main drain rather than the shower itself.
How do I remove a shower drain cover?
Most unscrew with a screwdriver, and some pop out by hand. Take a photo of the parts, clean off hair and gunk, then replace. Wear gloves and have a small container ready, since the debris underneath can be unpleasant.
Can a hair snake clear a shower drain?
Yes. A plastic hair snake with barbs pulls out hair clogs in minutes and is cheap and safe for pipes. Follow with hot water. Wear gloves, push the strip down, pull it back slowly and repeat until it comes up clean, then flush with hot water.
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