2-13. OPERATING PROCEDURES- cont.
Startup Refer to figure 2-30. Operation of the TWDS requires a minimum of seven operators. One
operator is required for each pump station and one for each storage and distribution point. Operators
must be in communication at all times.
(1) If pressure regulating valve is installed, set three bypass control valve handles to open position (para
To prevent injury to personnel or damage to equipment, pump station and storage assembly
operators must be in communication with each other during all phases of operation. Any unusual
situations or difficulties must be reported immediately.
(2) Open suction valve LI and discharge valve L2 in lead pumping station.
(3) Open suction valves B2 and discharge valves B3 in boost pumping stations.
Lead pump must be operated in manual mode to prevent pressure variations and erratic
operation of downline boost pumps.
Operator at lead pumping station must monitor status of advancing water column and system
(4) Start and operate 600 gpm pump in lead pumping station (refer to the pplicable TM).
(5) Start and operate 600 gpm pump in boost pumping stations (refer to the applicable TM).
Running time and pumping rates will vary during operation depending on the amount of water
being discharged and the storage capacity of the connected water systems.
(6) During pump operation, monitor all pump stations for correct suction and discharge pressures in
accordance with the applicable TM. Take corrective action if suction pressure is too low or discharge
pressure is too high.
Storage and distribution point operators should notify pump station operators at beginning and end of tank
Fill and discharge modes of storage assembly and distribution point no I is described. Operation of storage
assembly and distribution point no. 2 is the same.
(7) Open gate valve S1 at storage assembly and distribution point no 1.