How often must all grease interceptors be pumped according to the code?

The requirement for pumping grease interceptors is primarily aimed at ensuring their effective operation and to prevent overloading the wastewater system with fats, oils, and greases. According to building codes and plumbing regulations, grease interceptors should be pumped out regularly to maintain their efficiency and to avoid blockages that can lead to more significant plumbing issues, such as sewer backups and environmental violations.

Choosing a frequency of every 30 days aligns with the best practices outlined in plumbing codes, particularly for commercial establishments that generate a high volume of grease. Doing so ensures that the interceptor effectively separates and retains grease before it reaches the municipal sewer system.

While some regions may allow pumping on a less frequent basis—like every six months or annually—this typically applies only under specific conditions, such as low usage or smaller systems. Regular maintenance helps mitigate potential problems, ensuring compliance with local codes and maintaining the integrity of the plumbing infrastructure.