Showers & tubs

Shower drain running slow

A slow shower drain is almost always a clog of hair and soap scum in the trap or drain line, and is usually clearable without chemicals.

Difficulty
Easy
Time
20–40 minutes
DIY cost
$5–$20
Pro cost
$100–$250

Symptoms

  • Water pools around your feet during a shower
  • Drains fully but slowly after you finish
  • Gurgling sound as it drains
  • Slight odor near the drain

Likely causes

  • CommonHair and soap scum buildup in the drainThis is by far the most common cause and builds up gradually with regular use.
  • PossibleClogged P-trap under the drainDebris can lodge in the curved trap section just past the visible drain opening.
  • PossibleBuildup further down the branch drain lineSoap and mineral scale can narrow the pipe over years, especially with hard water.
  • Less commonMain line blockage affecting multiple fixturesIf other drains in the house are also slow, the clog may be further down the shared line.

What to do

  1. Remove the drain cover, usually held by one or two screws or a simple twist.
  2. Use a flashlight to look into the drain and pull out visible hair clumps with gloved fingers or a bent wire hook.
  3. Insert a plastic drain-cleaning tool (zip-style barbed stick) a foot or two down and pull out remaining debris.
  4. Pour a pot of very hot (not boiling on plastic pipe) water down the drain to help clear soap residue.
  5. If still slow, try a mixture of baking soda and vinegar followed by a hot water rinse after 15 minutes.
  6. For a deeper clog, use a hand auger (drain snake) fed a few feet into the line.
  7. Replace the drain cover and run water for a few minutes to confirm normal drainage.

Tools and parts

  • Flashlight
  • Gloves
  • Plastic drain tool
  • Hand auger (if needed)
Drain hair catcherSearch: “shower drain hair catcher”

When to call a pro

Call a plumber if snaking doesn't help or multiple drains in the house are slow at once, which suggests a main line issue.

Safety

Use caution

Avoid chemical drain cleaners in a slow shower drain; they can damage older pipes and are hazardous if they splash back.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.