Drum Trap

Definition

A plumbing trap shaped like a cylinder.

Purpose

Drum traps are used in plumbing systems to prevent sewer gases from entering buildings while allowing wastewater to flow out. They are designed to retain a small amount of water, creating a seal that blocks gases.

Examples of Use

1. Bathtubs: Often used in older plumbing systems to trap water and prevent sewer gases from escaping through the bathtub drain.
2. Sinks: Installed under sinks in some plumbing systems to serve the same purpose as a P-trap or S-trap.
3. Showers: Can be used in shower drain systems to prevent odors and gases from escaping.

Related Terms

• P-Trap: A plumbing trap with a curved shape, commonly used in modern plumbing.
• S-Trap: Another type of plumbing trap with a similar function but different shape.
• Cleanout Plug: A removable cap that allows access to the trap for cleaning and maintenance.

Notes

• Drum traps are less common in modern plumbing due to their tendency to collect debris and require frequent cleaning.
• They should be regularly inspected and maintained to ensure proper function and prevent clogs.