In a horizontally installed piping system, water flows through a 10 inch pipe. The head loss in a 500 foot section is 40 feet.

In a horizontally installed piping system, water flows through a 10 inch pipe. The head loss in a 500 foot section is 40 feet. OSH 4308, Advanced Concepts in Environmental Safety Management 6 The residual pressure at Point A is 55 psi and the velocity at Point A is 7 ft./s. If the velocity at Point B is 8.5 ft/s, what is the residual pressure at Point B?