May 17, 2010 · Given information from discussion, handouts, and reading materials, explain the pump operator's responsibilities to pump a supply line, given the length and size of line, flow and desired...

Feb 1, 2017 · A pumper in a relay pumping operation struggles to achieve 1,500 gpm due to a three-inch pipe connected to a five-inch LDH, limiting water flow and causing low discharge pressure.

Implementing a constant pressure relay operation .

The video demonstrates the proper procedures in how to relay pump.

Apr 1, 2022 · When using any form of relay operation, remember the basic rules of relay pumping. The performance of the relay will not exceed the size of the smallest pump or the smallest hose in the relay.

Pumping relays take time to build and are really dependent upon the arrival times of the pumpers and the size of their pumps. The important factor is the capability of the supply hose. Fittings and …

Apr 10, 2019 · Relay pumping is required when a combination of the water flow requirements and length of the water supply hose lays are too great for a single pumping apparatus to produce sufficient …

Relay pumping is used where a source of water sufficient for the operation is a long distance from the operation or when an uninterruptable water supply for an operation is required.

Pump 750 gpm through each supply line for a total of 1500 gpm Figure TFL for only one of the two supply lines since the same pressure and volume will be delivered to both lines with the discharge …

Some fire departments employ hose tenders to assist in relay pumping operations. The need for relay pumping is determined by the amount of water required and distance to a water source. The distance …