§ 7.22

well as the suction supply at the maximum flow available from the fire pump. To facilitate flow testing, all fire pumps shall be equipped with both of the following:

i.

Test Header. This device has the number and size of hose outlets per Table 4.28. When testing the pump, hose(s) are connected to the outlets with water discharged to a safe location. Flow readings are usually taken from the end of the hose(s) with a Pitot gauge.

ii.

Flow Meter. A special pipe is run from the discharge side of the pump back to the water supply (or to some other acceptable discharge point) with a flowmeter and control valve in the line. When testing the pump, the control valve is opened partially (with the pump already running) to achieve the 100 percent flow condition. The valve is opened more to achieve the 150 percent flow condition.

(Ord. 31258.)