When should mainline strainers be internally inspected?

Mainline strainers should be internally inspected annually to ensure they are functioning correctly and to prevent issues that could affect the overall efficiency of the sprinkler system. Regular internal inspections help identify potential blockages from debris or sediment, ensuring that water flow remains unobstructed. By conducting these inspections on an annual basis, maintenance teams can address any wear or damage that could lead to more significant problems if left unchecked.

This frequency balances the need for thorough oversight with practical scheduling, allowing for timely maintenance without overwhelming the maintenance workload. If inspections were too frequent, such as quarterly or semi-annually, it might lead to unnecessary downtime and increased labor costs without corresponding benefits in system reliability. Conversely, extending the inspection interval beyond a year could risk system performance and safety. Therefore, an annual schedule is optimal for maintaining the integrity of mainline strainers in sprinkler systems.