Filter use and acceptability among intervention households.

1Households were classified as “reported users” if 1) the filter was observed at the time of visit, 2) the storage vessel contained water reported to be treated, and 3) the respondent reported using the filter today or yesterday.2Households were classified as “confirmed users” if in addition to the criteria for reported users, there was at least a 1 log10 TTC improvement in stored household water over unfiltered water, or stored water quality was 3Exclusive use was defined as not drinking any unfiltered water today or yesterday. For all households that did not report exclusive use, the reason for drinking unfiltered water was that they were away from home. For children 4Mothers that didn't have filtered water reported that they did not have time to filter.55 L is 1 container provided; all households reported 1 container (2 households missing data).6Households were instructed to backwash and clean the pre-filters daily, as recommended by the manufacturer.