Value | Category |
---|---|
-998 | Dont know |
-888 | Other (specify) |
1 | Boil |
2 | Use alum |
3 | Add bleach/chlorine tablets |
4 | Strain through a cloth |
5 | Use water filter (ceramic/sand/composite) etc |
6 | Use electronic purifier |
7 | Let it stand and settle |
Sysmiss |
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