UL Field Inspections. Yesterday we were greeted at the front door by our UL Inspector for an unannounced field inspectionâ¦surprise! At another facility there might be a cry for alarm, but at Coast Label Company there was no mad scramble, no rush to hide this, or go find that. We just sat him down and asked what he was checking today.
Jet pumps create suction in a rather novel way. The pump is powered by an electric motor that drives an impeller, or centrifugal pump. The impeller moves water, called drive water, from the well through a narrow orifice, or jet, mounted in the housing in front of the impeller.
When an electric water heater isnât working, the most common thing we see is the electric heating element being burned out. The electric heating element sticks directly into the tank and heats the water directly. The most common mistake is that people turn on the electric heating element without making sure that water has filled the tank which makes the electric heating element burn up and stop working. Always make sure that you verify there is water inside the tank before turning on the electric water heater.