When preparing for a vacation, most people focus on the big, visible tasks. They adjust the thermostat, lock windows and doors, clear out the refrigerator, and make sure plants are watered or arranged for care. These steps are important, but there is one small detail many homeowners overlook that can affect how their home feels when they return. Sinks and drains, when left unused for days or weeks, can quietly contribute to unpleasant odors and minor moisture issues. Addressing this overlooked area before leaving can help maintain a fresher, more comfortable home environment.
Every sink is designed with a curved pipe underneath called a P-trap. This section of plumbing holds a small amount of water that acts as a natural seal. Its purpose is to block sewer gases and insects from entering the home through the drain. During everyday use, this water barrier is constantly refreshed. However, when a home sits empty for an extended period, the water in the trap can slowly evaporate. Once that seal weakens, odors can travel upward through the drain, often leading to the stale or musty smells people notice after returning from a trip.
