County outlines three technical failures that limited diffuser output and describes interim fixes
County staff said the diffuser system underperformed because compressors were undersized, intake air was too cold and building pressure gradients restricted flow; interim fixes (recirculating warm exhaust air, cutting extra openings) improved but did not restore full capacity.
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Spokane County engineers summarized the technical reasons the oxygenation system performed below expectations this spring and summer. "So in essence, the 3 problems that we know for the system are... the air compressors are too small," a county presenter said; staff added that compressed air feeding the oxygen separator was too cold (which damaged media) and that pressure differentials inside the compressor building added resistance that reduced flow.
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