TM 55-1930-209-14& P-5 Table 3-2.  Drinking Water System Valves Figures 1-2 and 1-3 Label Identification Type Callout Location and Valve Function 3-in globe valve DW1 Void 3 port (Barge 1) STORAGE TANK 1 FILL: Allows starboard (Barges 2 & 3) chlorine treated product water - in storage tank 1 fill from ROWPU's to flow into tank line on top of tank 1 and isolates tank 3-in globe valve DW2 Void 3 starboard (Barge 1) STORAGE TANK 2 FILL Allows port (Barges 2 & 3) - in Chlorine treated product water storage tank 2 fill line on from ROWPU's to flow into tank top of tank 2 and Isolates tank 3-in globe valve DW3 Void 3 port (Barge 1) STORAGE TANK 3 FILL: Allows starboard (Barges 2 & 3) - Chlorine treated product water In storage tank 3 fill line from ROWPU's to flow into tank on top of tank 3 and Isolates tank 3-in globe valve DW4 Void 3 starboard (Barge 1) STORAGE TANK 4 FILL Allows port (Barges 2 & 3) - chlorine treated product water in storage tank 4 fill line from ROWPU's to flow into tank on top of tank 4 and Isolates tank 1/2-in globe valve DW5 Dayroom - In water DAYROOM SUPPLY Allows line between pressure drinking water to flow to and set and drinking Isolates drinking fountain and fountain sink 3/8-in globe valve DW5A Dayroom - In water DRINKING FOUNTAIN SUPPLY (Barges 2 and line to fountain Allows drinking water to flow to 3 only) isolates drinking fountain 4-in gate valve DW6 Void 3 port (Barge 1) STORAGE TANK 1 DRAIN starboard (Barges 2 & 3) - Allows drinking water to drain in storage tank 1 drain line from tank 1 and Isolates tank near tank 4-in gate valve DW7 Void 3 starboard (Barge 1) STORAGE TANK 2 DRAIN port (Barges 2 & 3) - Allows drinking water to drain in storage tank 2 drain line from tank 2 and Isolates tank near tank 4-in gate valve DW8 Void 3 port (Barge 1) STORAGE TANK 3 DRAIN starboard (Barges 2 & 3)- Allows drinking water to drain In storage tank 3 drain line from tank 3 and isolates tank near tank 4-in gate valve DW9 Void 3 starboard (Barge 1) STORAGE TANK 4 DRAIN gate (Barges 2 & 3) - in storage Allows drinking water to drain tank 4 drain line near tank from tank 4 and Isolates tank 2-in DW10 Void 3 starboard STORAGE TANK DRAIN TO globe valve - under deck in BILGE.  Allows drainage of (Barges 2 and storage tank drain drinking water from storage 3 only) line near fuel pump tank(s) to bilge 1-1/4 in gate valve DW11 Void 3 port - in PRESSURE SET SUPPLY pressure set inlet Allows drinking water to flow to line between main pressure set and Isolates drinking water supply pressure set line and pressure set 4-in ball valve (3-way) DW12 Void 3 port - In DISCHARGE PUMP I SUPPLY discharge pump Allows pump to drain drinking suction line near water from storage tank(s) pump 1 3-2