(1) Attach inlet port of meter to a straight pipe, at least 20 inches (50 cm) long, leading to a metered water
source. The source must have an output range of 5 to 40 gpm (19 to 151 Ipm).
If no metered source IS available, run the source into a
graduated tank for 1 minute to determine exact flow rate.
(2) Run water through meter at a rate of 5 gpm ( 19 Ipm) . If meter reading varies from flow rate by more
than 0.15 gpm (0.6 Ipm), discard meter.
(3) Run water through meter at a rate of 20 gpm (76 Ipm). If meter reading varies from flow rate by more
than 0.60 gpm (2.3 Ipm), discard meter.
(4) Run water through meter at a rate of 35 gpm (132 Ipm). If meter reading varies from flow rate by more
than 1 gpm (3.8 Ipm), discard meter.
(1) Inspect dial crystal for cracks or scratches.
(2) Inspect dial face for legibility. Make sure needle can move freely.
(3) During test, check meter body and dial for leaks.
e. Repair or Replace.
(1) Replace damaged or unserviceable flowmeter assembly.
(2) Send replaced unusable brine water flowmeter assembly to next higher level of maintenance.
f. Packaging for Reissue.
(1) Tag tested serviceable flowmeter assembly for identification.
(2) Seal flowmeter assembly in a polyethylene bag.
(3) Package flowmeter assembly for reissue to Unit Maintenance.
3-30. CHEMICAL FEED PUMP BLOCK/HEAD ASSEMBLY.
a. General. The chemical feed pump injects four different chemicals into the ROWPU water system to help
purify the water. The pump can be disassembled into four separate block/head assemblies. This paragraph
describes removal, cleaning, inspection, and installation of a block/head assembly.