| Value | Category | Cases | |
|---|---|---|---|
| 1 | Aqua tabs/water purification tablets | 17 |
2.5%
|
| 2 | Boil it | 15 |
2.2%
|
| 3 | DNK | 166 |
24.3%
|
| 4 | Expose it to sunlight | 3 |
0.4%
|
| 5 | Let it stand and settle | 367 |
53.7%
|
| 6 | Liquid chlorine | 1 |
0.1%
|
| 7 | PuR or Watermaker sachets | 1 |
0.1%
|
| 8 | Other | 114 |
16.7%
|