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When the Simsbury
Volunteer Fire Company formed in 1944, the members immediately
faced several challenges in providing fire protection services
to the town. Many areas of Simsbury lacked hydrants and getting
enough water into the outlying areas to fight fires was a major
concern. The Fire Company moved quickly and built a tank truck
capable of transporting over 1,000 gallons of water which was an
impressive feat in those days. Even today, Simsbury still has
areas which are not covered by municipal water service, thus the
need to bring water to the fire still exists, as it does in many
suburban and rural towns.
One method of
supplying a large amount of water for fighting a fire when a
water source is remote to the incident is through a water
shuttle operation. During a water shuttle, apparatus fill their
tanks at a remote source, transport the water to the incident
and deposit it in a collapsible drop-tank, and then an engine
drafts from the collapsible tank to supply water for fire
fighting operations.
The effectiveness of
a water shuttle operation depends on several variables. Modern
engines can be used to transport water but their booster tanks
generally carry only from 500 to 1,000 gallons, but a tanker is
specifically designed for this purpose usually having a 2,000 to
4,000 gallon capacity. By enlisting mutual aid assistance from
the surrounding towns, a fleet of tankers can be brought to bear
on the problem.
One or more fill
sites each staffed with an engine to fill the apparatus
shuttling water has to be established. If no hydrants are available the engines
may be forced to set-up a drafting operation to supply the
shuttle apparatus.
At the incident,
collapsible drop-tanks carried on the tankers are deployed and
an attack engine will set-up to draft from one of the
drop-tanks. The attack engine drafting from the tank may supply
hand lines, deck guns or aerial streams, or other apparatus. The
more drop-tanks used the more storage capacity created and the
more gallons that can be flowed.
To move water from
any auxiliary drop-tanks to the attack drop-tank, hard-suction
hoses with strainers equipped with jet-siphons will be run
between the tanks. Typically, a 1½" hose line is attached to the
jet-siphon and when the line is charged, it sends a small stream
of high-pressured water through the hard-suction hose. This
causes water from the tank to be drawn along with it and
transferred through the hard-suction into another drop-tank.
The goal of a water
shuttle is to provide an uninterrupted supply of water that is
of adequate gallonage to support fire fighting operations. On
the evening of August 14, 2006, the Simsbury Volunteer Fire
Company, along with the towns of Avon, Canton, Granby and East
Granby, held a drill to exercise our water shuttling
capabilities. The aim was to establish two separate fill sites,
effectively assign tankers to the fill sites to prevent delays
so that a steady supply of water was always maintained, and to
flow as many gallons-per-minute as possible over an extended
period of time.
Tankers from Granby, Canton, Avon, East Granby and Simsbury participated in the drill. The mural painted on Avon's Tanker 5 depicts scenes from the town. Needing to replace their aging tanker, members from Ellington use the occasion to do some research and review the many different models of tankers. Capable of holding 3,000 to 3,500 gallons each, four drop-tanks are deployed side-by-side. A low-level strainer with a jet-siphon. This strainer allows most of the water in the drop-tank to be used. With all-wheel drive capabilities and a front-mounted pump, Engine 3 was specifically designed for drafting applications. Drafting is raising water from a static source through non-collapsible hose. Water must be constantly moved through the pump to maintain a draft. Engine 3 fills Canton's Tanker 7. Efficient filling of apparatus at the fill site is key to a successful water shuttle operation. Chief Jim Meade and Firefighter John Solury track resources and maintain personnel accountability at Special Operations 17. Lost Acres 6 dumps its tank as Simsbury's Tanker 9 waits on-deck. Lt. Kristin Kelley assigns the tankers to one of two fill sites and tracks their transit times to keep all units shuttling water efficiently. Operations officer Captain Marc Melanson observes from the side step as Engine 16 drafts from a drop-tank. From Engine 16's elevated pump panel, Walter Banzhaf monitors the drop-tanks and controls all pumping operations. Water is transferred from an adjacent drop-tank into the tank Engine 16 is drafting from by use of the jet-siphon on the low-level strainer. Engine 16 supplies Tower 12's water needs via large-diameter hose. A pump operator must literally have their hands on the situation as it takes constant vigilance to properly manage this complicated pumping scenario. The ultimate goal: get water from a remote site, transport it to the incident and get it on the fire. Tom Salina flows water from Tower 12's bucket.
Tankers from Granby, Canton, Avon, East Granby and Simsbury participated in the drill.
Photographs
by Cliff Williams
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