What must grease duct reservoirs be provided with for maintenance purposes?

Grease duct reservoirs must be equipped with a cleanout opening to facilitate maintenance and ensure proper upkeep. This requirement is essential because grease ducts can accumulate grease, which poses a fire hazard if not regularly cleaned. The cleanout opening allows for the efficient removal of accumulated grease and debris that can build up over time in the reservoir, ensuring that the duct system remains free of blockages and reduces the risk of a fire. By providing access for cleaning, this component plays a critical role in maintaining the safety and efficiency of commercial kitchen ventilation systems where grease is present. Proper maintenance is crucial for compliance with safety codes and helps prolong the lifespan of the duct systems.