Table 2.
Design accumulation rates and actual excreta filling rates
| Design/Place | Filling rates litres/capita/annum (l/c/a) | Reference |
|---|---|---|
| Design accumulation rates | ||
| EG Wagner and JN Lanoix [16] and R Franceys, et al. [15] | 40 | Wet pits where degradable anal cleansing material is used |
| 60 | Wet pits where non degradable anal cleansing material is used | |
| 60 | Dry pits where degradable anal cleansing material is used | |
| 90 | Dry pits where non degradable anal cleansing material is used | |
| Reported pit latrine filling rates | ||
| EG Wagner and JN Lanoix [18] and R Franceys, et al. [15] | 25 (ablution water used) 35 Wet pit | West Bengal, India |
| EG Wagner and JN Lanoix [18] | 40 (solid cleansing material) | Philippines |
| PR Morgan, et al. [57] | 20 | Zimbabwe PR Morgan, et al. [94] |
| R Franceys, et al. [15] | 42 | USA |
| 47 | Brazil | |
| JN Bhagwan, et al. [110] | 24.1 (mean) | Soshongove, South Africa |
| 69.4 (mean) | JN Bhagwan, et al. [110] Bester’s Camp, South Africa | |
| 18.5 (mean) | Mbila, South Africa | |
| 27.5 (implied) | Gabarone, Dares salaam | |
| 29 (median) | Mbazwana, South Africa | |
| 34 (median) | Inadi, South Africa | |
| DA Still and K Foxon [53] | 39 (median) | Limpopo, South Africa |
| 48 (median) | Mafunze, South Africa | |
| 21 (median) | Ezimangweni, South Africa | |
| 19 (mean) | eThekwine, South Africa |