What is a common reason for failure to generate foam or generating poor-quality foam?

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Foam generation relies on drawing foam concentrate into the water stream using the eductor, which works only when the nozzle flow matches the eductor’s designed suction range. If the flow ratings don’t line up, the eductor can’t induct the concentrate properly, so little or no foam forms or the foam quality is poor. The other factors—concentrate viscosity, nozzle and eductor positioning, or excessive pressure from the nozzle—can influence performance, but they don’t address the primary requirement: the flow and suction must be within the eductor’s intended range for effective foam induction. To prevent this, ensure you select the correct eductor for the expected nozzle flow and operate within the specified pressures and flow ranges.