2-17. OPERATION IN EXTREME COLD (BELOW 32°F (0°C)) - cont.
To prevent damage to the equipment, all hoses must be disconnected from the water pumps,
hypochlorination units and collapsible tanks Pumps, tanks, and hoses must be drained quickly All
control valves must be opened and all equipment inspected to assure complete drainage
If equipment is shut down during cold weather (temperature falls below 32°F (0°C), perform the
following steps to ensure water is drained from collapsible tanks, hoses, valves, pumps and
Lead and Boost Pumping Stations.
(1) Open all butterfly valves.
(2) Disconnect hoses from lead and boost pumping stations. Allow water to drain from pumps, hoses
(3) Drain water from 600 gpm water pumps. Refer to the applicable TM for operating the 600 gpm
pumps in extreme cold.
(4) Open water inlet gate valve.
(5) Drain 20K collapsible fabric tanks. Refer to applicable TM for operating the fabric tanks in
(6) Allow water to drain from hoses and couplings.
(7) Open all dispensing nozzles, elbow valves and gate valves. Allow water to drain from pumps,
hoses, couplings and hypochlorination unit.
(8) Disconnect and drain 125 gpm water pumps. Refer to the applicable TM for operating the 125
gpm pump in extreme cold.
(9) Disconnect and drain hypochlorination units. Refer to the applicable TM for operating the
hypochlorination units in extreme cold.
All low spots along hoseline route must be opened to allow water to drain from hose. Ice In
hoseline will damage hose and pumping equipment.
(10) Remove couplings from hoseline and allow water to drain.