Sono balls were deployed into the main via the pig launch to listen for leaks on most of the force main inspections I was involved with (not many). They help navigate the variables you note above. Accurate metering, leak detection, pressure management and routine flushing/ice pigging are all key factors in operating an efficient water distribution system.We
We provide ultrasonic leak detection it work well on water lines and has varying degrees of success on forced mains depending on Depth and soil type, and it’s not widely used by most Municipalities because it’s incredibly costly to go over a whole pipeline And provide traffic control gravity systems are relatively easy and low cost to inspect but like npsp stated it much More cost effective To provide good asset management as opposed to wait and see