Interesting little story/advisory from the Buffalo Fire Department. Something that we in the North Country are all to familiar with. My department, we run with our front suction lines dry with the drain valves open from October to April, ya just have to remember to close the drain valves when you want to pull a draft.
Cold Weather Operations
Engine 3 responded to a fire at 44 Gibson Street at 2:59 hours on 01/23/14. Conditions were clear but extremely cold. Engine 3 was first on location and deployed a 1-3/4 hand line on a one and a half wood frame structure. The driver and hook up hooked to a hydrant in front of the house with their 5 “ front suction. The officer and attack advanced the line and were putting water on the fire.
The driver of Engine 3 activated the electronic switch to open the front suction valve and received the green light indicating the valve opened. The valve did not open even though it appeared to be working. The driver was unable to receive water from the hydrant due to the valve not opening. The crew inside was forced to exit the building until a water supply was established from Engine 32, who were in position to provide a feed. Once the feed was established interior operations were reestablished and the fire extinguished.
In the time it took to finalize operations and return to quarters, Engine 3 had incurred a large amount of ice in their front suction intake. (See attachments above). Please take note at how fast ice will build up in this cold weather. Keep your pumps circulating when idling at any incident that doesn’t require water flow.
Engine 3 had been experiencing some problems with their front suction valve prior to this incident. When opening the valve it was noticed that it was slow to open and wasn’t opening smoothly. Also it was noticed that water was collecting in the 5” feed hose on front bumper.
The front suction valve was malfunctioning because it had developed a loose wire and was shorting itself out. That is why it would work as designed at times and would act up at other times. At the incident on Gibson Street it finally completely shorted out and was locked in the closed position even though the light indicated the valve was open. This gave the impression that the pump was receiving water from the hydrant but in fact it water was not moving past the intake valve.
Weather most certainly played a factor in this incident. Wet streets, rock salt, potholes and certainly cold weather all led to the degradation of the valve. It is very important that all companies pay close attention their apparatus in the extreme cold conditions we will be experiencing in the foreseeable future. With the addition of electronics on the new rigs do not get lulled into a false sense of security with respect to the operation of your rigs. If something is not operating properly notify the shop ASAP so that they can mitigate it before you are under the gun at a fire. Always have a backup plan in case the unexpected happens which according to Murphy will happen in the cold weather.
When the temperature rises to a respectable level in the next couple of weeks it is advisable that pumpers hook up to a hydrant and verify that their front suction valves are operating properly. Any problems need to be reported to the shop.