Interviewer instructions
Record the code corresponding to the response. The household may be using a method that you know does not make water safer to drink. Do not use your own judgement, just record the response.
Probe: "Anything else?" Record all items mentioned (for example, the household may be filtering the water and adding chlorine at the same time).
If the respondent mentions a method that is not included in the pre-coded responses, record 'X' for 'Other' and specify on the line provided what the household does to the water to make it safer to drink. Record 'Z' if the respondent 'Doesn't know'. If 'Z' is recorded, no other codes cannot be recorded.