Value | Category |
---|---|
1 | private tap water |
2 | public tap water |
3 | water bought from other place |
4 | pumped water from drilled well |
5 | well water |
6 | filtered spring water |
7 | unfiltered spring water |
8 | shallow well water |
9 | rain water |
10 | river, lake, pond water |
11 | other |