9 articles
Learn drinking-water distribution-system fundamentals, including transmission and distribution mains, pressure zones, storage, valves, hydrants, service connections, meters, pumps, booster stations, and system operation.
Learn distribution-system pressure zones, head, hydraulic grade, elevation effects, static and residual pressure, friction loss, storage influence, booster stations, PRVs, and pressure troubleshooting.
Learn distribution storage and system demand, including balancing, emergency and fire storage, tank levels, pressure, turnover, water age, mixing, demand patterns, controls, and troubleshooting.
Learn distribution-system valves, hydrants, meters, and service connections, including component functions, operation, maintenance, flow effects, meter accuracy, service-line problems, and troubleshooting.
Learn distribution-system pumps and booster stations, including pump head, system resistance, pressure control, lead-lag sequencing, variable-speed drives, check valves, suction and discharge conditions, energy use, and troubleshooting.
Learn water-main installation and new-service fundamentals, including trench preparation, bedding, pipe handling, restraints, pressure and leakage testing, flushing, disinfection, sampling, service connections, and return-to-service procedures.
Learn how operators respond to water-main breaks, leaks, pressure loss, emergency isolation, repairs, flushing, disinfection, temporary service, contamination risk, and post-repair monitoring.
Learn distribution-system flushing and disinfection, including routine and corrective flushing, unidirectional flushing, sediment removal, residual recovery, post-repair response, water-quality monitoring, and troubleshooting.
Learn cross-connection control and backflow prevention, including backsiphonage, backpressure, hazard evaluation, air gaps, backflow-prevention assemblies, inspection, testing, maintenance, and troubleshooting.