| Value | Category | Cases | |
|---|---|---|---|
| Boiling | 24 |
8.3%
|
|
| Chemicals (Chlorine,Pur,Waterguard) | 236 |
81.7%
|
|
| Chemicals (Chlorine,Pur,Waterguard) Boiling | 1 |
0.3%
|
|
| Chemicals (Chlorine,Pur,Waterguard) Other | 1 |
0.3%
|
|
| Other | 7 |
2.4%
|
|
| Pot filters | 1 |
0.3%
|
|
| Pot filters Traditional herbs | 2 |
0.7%
|
|
| Traditional herbs | 17 |
5.9%
|