Why is my shower slow draining

PlumbingUpdated March 2026

The answer to 'why is my shower slow draining' is that a clogged drain is the most common cause. Over time, hair, soap scum, and other debris can build up in the drain pipe, restricting water flow and causing a slow drain. You may also notice the water taking longer to fully drain after a shower.

If the drain is only slightly clogged, you may be able to clear it yourself using a plunger or drain snake. However, if the clog is further down the pipe or the drain is severely blocked, you'll likely need to call a professional plumber to properly clear the clog and restore full drainage.

Sources

International Association of Plumbing and Mechanical Officials (IAPMO)— authority

Plumbing Manufacturers International (PMI)— authority

This Old House Guide to Unclogging Drains— guide

Step-by-Step Guide

1
Use a Plunger
Fill the shower basin with a few inches of water, place the plunger over the drain, and plunge up and down rapidly several times to try to dislodge the clog.
2
Try a Drain Snake
If the plunger doesn't work, you can use a drain snake (also called a plumber's snake or auger) to physically break up and remove the clog in the drain pipe.

Frequently Asked Questions

How do I unclog a slow shower drain myself?

You can try using a plunger or drain snake to clear a minor clog. If that doesn't work, you may need to remove the drain cover and use a wet/dry shop vacuum to suck out the clog.

When should I call a plumber for a slow shower drain?

If the drain is severely clogged and you can't clear it yourself, or if the clog is further down the pipe, it's best to call a professional plumber. They have the right tools and expertise to properly diagnose and fix the issue.

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