What is a building trap?

A building trap is designed to prevent sewer gases from entering a building. This device is crucial for maintaining the health and safety of indoor environments, as sewer gases can be harmful and unpleasant. The trap functions by creating a water seal that acts as a barrier. When water is present in the trap, it prevents those gases from traveling back into the living space, thereby protecting the occupants.

In plumbing systems, gravity pulls water down, and the building trap strategically maintains a pool of water to block the flow of gases while still allowing wastewater to exit the building. This maintains the integrity of the plumbing system while ensuring that the indoor air remains safe for occupants. Understanding the role of a building trap is essential for anyone involved in plumbing and building maintenance, emphasizing its importance in design and installation.