As hurricane season approaches, emergency management agencies frequently advise residents to fill their bathtubs with water before a storm makes landfall. While this advice may seem unusual to those who have not experienced a major hurricane, it serves a specific, practical function in disaster recovery.

The primary purpose of storing water in a bathtub is to provide a non-potable supply for sanitation needs. During and after severe storms, municipal water systems can become compromised due to power outages at pumping stations or damage to underground infrastructure. By having a large reservoir of water readily available, households can manually flush toilets, which is essential for maintaining hygiene and preventing the spread of disease when standard plumbing systems are non-functional.

Experts emphasize that this water is generally intended for flushing toilets and cleaning, rather than for drinking or cooking. For potable water, officials recommend maintaining a separate supply of bottled water or using containers that have been thoroughly sanitized. The practice is considered a low-cost, effective way to increase a household's resilience during the immediate aftermath of a storm, particularly when water pressure is lost or boil-water advisories are issued by local authorities.