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SIMULATED, NOT MEASURED. A clogging and scrub-recovery model prices a two-candle ceramic filter at US$1.790 per 1000 L over a 391-day, 7820 L life with a flow-based end-of-life rule, and a storage regrowth budget shows unprotected filtrate rising from 1 to 11 CFU/100mL in 24 h at 30 C. Nothing was built or field-tested.
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William Alexander Aldred (2026) studied this question.
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