Table 2 Design accumulation rates and actual excreta filling rates

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