Malibu, California – At Pepperdine University, even the horses kicked up a fuss about how noisy a nearby valve was when it opened and closed. The horse stable stood next to a reservoir tank in the pressure zone at an elevation of 545 feet. The valve, which was at the tank’s inlet, was serviced by a high pressure line from 812 feet elevation. When opened, the valve would vibrate so drastically from the pressure drop that the nearby horses

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