What hazard can occur if plumbing traps are not functioning correctly?

When plumbing traps are not functioning correctly, one of the primary hazards is the entrance of sewer gases into a building. Plumbing traps are designed to hold a small amount of water at all times, creating a barrier that prevents harmful gases and odors from the sewer system from escaping into the indoor environment. These gases can be toxic and pose serious health risks, including respiratory issues and exposure to pathogens.

If a trap dries out due to evaporation, becomes clogged, or is improperly installed, this water barrier is compromised. As a result, sewer gases can travel through the plumbing system and infiltrate the living spaces of a building. This situation not only poses health hazards but also can lead to unpleasant odors and discomfort for the occupants.

Overall, maintaining functioning plumbing traps is critical for ensuring both the safety and comfort of any living or working environment.