In January 2020, a wheeled fire extinguisher failed to operate because of a blockage in the siphon tubing line. This failure resulted in two personnel requiring medical evaluation and led to a delay in extinguishing a fire. An investigation of the fire extinguisher failure found that the device pressured up as intended, but the moisture disc did not rupture. The siphon tube had become packed with chemical, which prevented the chemical from flowing out of the hose.
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