Case Study
5th Harmonic Resonance
Application Note Problem description A small city gets its water from a mountain lake 30 miles away. A pumping system at the lake brings water up a short incline and into a long gravity pipeline that feeds the city’s water distribution system. Before entering the pipeline, the water passes through a filter that removes debris. When the differential pressure across the filter gets too high, a large backwash pump reverses the flow momentarily to cl