What is the minimum duration the pool must remain closed following a liquid stool fouling incident?

The correct duration for closing a pool following a liquid stool fouling incident is typically 12 hours. This time is critical because it allows for effective disinfection procedures to take place, ensuring that harmful pathogens are neutralized. The closure period is based on guidelines from health authorities that aim to safeguard swimmers' health.

During this time, the pool's water chemistry can be adjusted, and proper sanitization protocols can be implemented. High levels of chlorine are often required to effectively disinfect the water following contamination, and these levels can take time to achieve and stabilize to ensure safety.

While other timeframes are often suggested in various scenarios or guidelines, the 12-hour closing period is a standard recommendation for managing liquid stool incidents effectively. This helps to balance the need for timely remediation and health safety standards.