How often should water systems be flushed according to practice standards?

Flushing water systems is a crucial maintenance activity that helps maintain water quality, prevent stagnation, and address any sediment or biofilm buildup in the distribution system. The recommended frequency of semi-annually flushing aligns with industry best practices aimed at ensuring optimal water quality and system performance. Flushing twice a year allows for a thorough exchange of water, helping to reduce the risk of contamination and maintaining the infrastructure's integrity.

This practice is particularly important in areas with low water usage, where stagnation could lead to issues such as taste and odor problems and the growth of harmful microorganisms. Implementing a semi-annual flushing schedule provides a balance between maintaining water quality and the operational constraints of the water utility, making it an effective standard for public health and safety.