Circle the code corresponding to the response. Probe: "Anything else?" Circle 'X' for 'Other' and specify on the line provided what the household does to the water to make it safer to drink. Circle 'Z' if the respondent 'Doesn't know'. Definitions of various methods of water treatment are as follows: 'A' - Boil refers to boiling or heating water with fuel. 'B' - Add bleach/chlorine refers to using liquid chlorine bleach or bleaching powder to treat drinking water. 'C' - Strain it through a cloth refers to pouring water through a cloth that acts as a filter for collecting particles from the water. 'D' - Use water filter involves water flowing through a filter made of ceramic, sand or a combination of materials to remove particles and at least some microbes from the water.