| 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%
                                 
                                                             |