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One Stop Fire Products |
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Fire Fighting Pumps For Your Farm, Camp or Cottage!
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| What Is A Fire Pump? |
What Is A Fire Pump System?
A portable fire pump system is firefighting apparatus that can be easily transported to a fire scene and quickly made
operational to deliver large quantities of water onto the fire. For home fire fighting purposes, equipment classed as
"forestry" is commonly used due to its portability and light weight. The following components are needed for
a typical system:
Fire Pump
This is the heart of your system. The pump has several requirements to make it appropriate for this type of duty:
- designed for fire fighting applications (not transfer, dewatering or trash pumps)
- light in weight so that it can be transported short distances (100 m.) by one person
- able to produce high water pressure -- 80 psi and above
- pump large volumes of water (1 gallon/second or greater)
- push the water the needed distance both horizontally and vertically
- reliable easy-to-start and easy-to-maintain engine
- operate for 45 minutes or more between refuellings
- draw the water from a reservoir and lift it to the pump
The pump is the most critical part of your system. Your situation will determine which pump is appropriate. The amount
of transport required will point you toward or away from certain units.
If your pump can be semi-permanently staged into an operating position, then the larger pumps will be able to perform
better. If it must be hauled quickly from its storage location to the water supply, then look to the lighter pumps -- but
remember, there may be a performance trade-off. Pump price will also be a factor. The Wickman (Wick) line is
professional quality. It is used by the Ontario Ministry of Natural Resources (as well as other organizations) for fighting
forest fires. These pumps are proven high performance units. Be aware that both 2 & 4 stroke engines are used for
power. Generally speaking, 2 stroke units are lighter with higher performance but are more expensive.
Discharge Firehose
This hose will deliver the water from the pump to the fire. Typical size is 1½" in diameter -- similar to that
used by the fire department and in lengths of 100'. Sometimes, 1" hose is used where large quantities of water are
not required. The 1½" will provide a lot of water and can be handled by one person (a full hose can get heavy!).
It is usually constructed from a synthetic fabric that is light, strong, resistant to abraision, and does not require drying
after use. For storage, it collapses flat and rolls into a compact coil. Rigid hoses (garden hose style) are not normally
used for fire fighting because of the bulk, weight & failure potential. Hoses come in 2 types -- weeping and non-weeping.
A weeping hose is designed to pass moisture through the wall so that it becomes damp on the exterior. This serves to
protect the hose from heat, hot embers and also serves to lubricate it for dragging along the ground. The non-weeping
type remains dry on the exterior. In most cases, single jacket forestry hoses will be the ideal choice.
Note ... You can never have too much firehose. Remember that when the hose is charged, it does not like sharp turns.
Long gradual turns will prevent kinking and the cutting off of water flow. Also, you need the ability to change positions at
the nozzle end. Being able to get to the side or back of a fire is invaluable. Also, it saves the operator from 'eating' a lot of
smoke. Good advice -- have three times the amount of hose that you think you need.
Nozzle
This is the business end of the fire hose. Think of your garden hose. Generally, there are 2 types of nozzles:
- stream ... water exits in a fixed stream -- no adjustment
- fog/stream ... adjustable from stream to fog (spray) to off.
Stream nozzles are good for penetration through a burning surface into the lower layers of a fire. These are most effective
when you wish to kill the fire that is smoldering inside materials -- to put the fire out! Fog is deal for attacking a brush or
grass fire or knocking down a structure fire. An adjustable nozzle allows you to adapt to the fire and circumstance. Most
people are comfortable with the garden hose style of nozzle which is an adjustable stream/fog unit.
Suction Hose
This is the hose that goes from the water supply to the pump. It is different from the discharge firehose in that it must
be of a rigid structure to prevent it from collapsing from the suction generated by the pump. You want the length to be a
short as possible -- 10' to 15'. Realistically, it must be long enough to go from the pump and extend into the water supply
a short distance with a bit to spare. Be sure to allow for various water levels that occur at different times of the year. Care
must be taken in handling and storage to prevent this hose from kinking or being damaged. If it is run over by a vehicle or
is kinked, it can no longer be used.
Footvalve
This attaches to the end of the suction hose that exetends into the water supply. Under no circumstances should the
pump draw from an open water supply without one. It prevents foreign objects and debris from being drawn into the system
as well as helping to maintain water flow into the pump. Ingesting something could stop the water flow if you are lucky.
Drawing in debris could cost you your expensive pump! Even if drawing water from a swimming pool, failure to use one
could result in your pump eating your pool toys or even the pool liner.
A footvalve also acts as a check-valve that prevents water from leaving the pump (following the rules of gravity) and
returning to the lake, river, pool, etc. Once the pump is actually pumping water, this is not a problem. However, when
you are first attempting to start the pump or when you shut the pump down briefly to change the hose lay, refuel, or other
reason, you may lose the pump's prime and its ability to deliver water. This can be a frustrating problem as it takes
time to prime the the pump and does add significant wear to the system as it attempts to prime itself.
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