TM 55-1930-209-14&P-1
CHAPTER 15 SHORE DISCHARGE SYSTEM
Section I. General
15-1 General. The shore discharge system discharges drinking water from barge drinking water storage tanks via a
flexible steel and rubber-coated hose to a storage area ashore, as shown in Figure 15-1.
15-2 Description. System transports drinking water from barge storage tanks to holding/storage facilities ashore Major
system components are listed In Table 15-1. Equipment specifications, maintenance Information and manufacturer's
service manuals are contained In TM 55-1930-209-14&P-6.
15-3 Capabilities. This system, under optimum conditions, moves 300,000 gallons of drinking water per day from barge
drinking water storage tanks to shore storage facilities.
15-4 Special limitations. The shore discharge system has been designed to operate in a condition not exceeding sea
state 3
15-5 Performance characteristics:
Maximum operating pressure
150 psi
Flow rate capacity
300,000 gal/day
Flexible hose length
2500 ft
Ambient operating temperature
32° to 120°F
Electrical power requirement
440 Vac, 3 ph, 60 Hz
Section II. Description and data
15-6 Shore winch installation. To set up the shore discharge system to pump drinking water ashore, an LCM-8 or
vessel with same capability, is positioned across the bow of the ROWPU barge When the 20-ton capacity shore winch
(weighing 5.5 tons) has been readied for deployment (TM 55-1930-209-14&P-21), the bow crane lifts it off the barge and
sets it in the LCM-8. Operation, maintenance, and use of the bow crane is described In TM 55-1930-209-14&P-13. When
the LCM-8 has run ashore and lowered its ramp, the shore unit uses a forklift to unload the winch The winch is then
positioned on the beach and stabilized by stakes driven in by an air compressor-powered jackhammer. The free end of
the messenger line, which has been brought ashore, is then fastened to the winch drum. At the barge, the bitter end of
the messenger line and lines from floating buoys are tied to the hose end cap.
15-7 Hose deployment. A supervisor coordinates hose deployment from the hose reel to the shore winch takeup.
Operator uses winch control lever and levelwind control lever to match barge reel winch deployment speed with shore
winch retrieval speed As the hose is deployed, marker buoys are attached to the hose These buoys, along with status
lights (nighttime) or status markers on the deckhouse top, warn vessels that an underwater hose Is deployed.
15-8 Pumping water to shore. When hose is connected to shore connection, flexible discharge hose deployment is
complete. Drinking water Is then pumped ashore until water-making operations at this location are stopped and discharge
hose is retrieved.
15-9 Hose retrieval. Retrieval begins when the flexible hose is disconnected from the water connection ashore and the
PIG catcher is attached to the hose end. The PIG, propelled by compressed air, travels from the barge end of the
discharge hose to the shore, and pushes the water out of the hose to make it easier to retrieve. When this procedure is
complete, the PIG catcher on the end of the discharge hose is replaced with the hose end cap and floating buoys. The
barge winch operator then operates both the hose reel winch control lever and levelwind control lever to rewind the hose
on the winch reel.
15-1
