| Parameters | Appearance | Odour | ||||||
| Month | Nov 17 | Jan 18 | Apr 18 | Jul 18 | Nov 17 | Jan 18 | Apr 18 | Jul 18 |
| Sme | Clear and clean | Clear and clean | Clear and clean | Clear and clean | Odourless | Odourless | Odourless | Odourless |
| Bme | Clear and clean | Clear and clean | Clear and clean | Clear and clean | Odourless | Odourless | Odourless | Odourless |
| Bkw | Clear and clean | Clear and clean | Clear and clean | Clear and clean | Odourless | Odourless | Odourless | Odourless |
| Wkw | Not clear with tiny brownish debris | Not clear with tiny brownish debris | Not clear with tiny brownish debris | Clear and clean | Rotten leaves odour | Rotten leaves odour | Rotten leaves odour | Rotten leaves odour |
| Smy | Clear and clean | Clear and clean | Clear and clean | Clear and clean | Odourless | Odourless | Odourless | Odourless |
| Wko | Clear and clean | Clear and clean | Clear and clean | Clear and clean | Odourless | Odourless | Odourless | Odourless |
| WHO | Clean and clear | Odourless | ||||||