# Clearing a Drain or Trap

Part of the Home Repairs Merit Badge Digital Resource Guide: [Introduction & Overview](https://merit-badge.university/merit-badges/home-repairs/guide/index.md)

*5. Plumbing Basics*

> **5a.** Clear a clogged drain or trap.

A sink that drains slowly is giving you an early warning. Somewhere in the path below the fixture, hair, grease, soap residue, or debris is narrowing the flow. Clearing a drain or trap teaches you to think about plumbing as a path water has to travel, not just as a hole in the sink.

Video: [How to Unclog Any Drain (video)](https://www.youtube.com/watch?v=LpDLynrXln8)

## What a Trap Does

The trap is the curved section below many drains. It holds a small amount of water that blocks sewer gases from coming back into the room. Because it is low and curved, it is also a common place for debris to collect.

## Start With the Least Invasive Fix

Depending on the situation and your supervising adult’s guidance, you may start with:

- Clearing visible debris at the drain opening
- Using a plunger correctly
- Opening and cleaning a trap
- Reassembling and testing for leaks afterward

> **Safety First!**
>
> Avoid mixing drain chemicals, and do not open a trap if chemical cleaner has recently been poured into the drain. Wear gloves and eye protection, and keep a container or towels ready before loosening any plumbing connection.

This requirement teaches you to prepare before loosening anything. Water always comes out faster than many beginners expect.

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- Next: [Fixing a Leaky Faucet](https://merit-badge.university/merit-badges/home-repairs/guide/req5b/index.md)