Table 2.
Survey results on intermittent water supply device.
| Description | n a | % | Description | n a | % |
|---|---|---|---|---|---|
| Storage device | Last tank cleaning | ||||
| Rooftop tank | 27 | 44 | <1 month | 7 | 17 |
| Cistern | 2 | 3 | 1–6 months | 11 | 22 |
| Both | 32 | 52 | 6–12 months | 12 | 24 |
| Tank type | 12–24 months | 8 | 16 | ||
| Concrete/plastic | 44 | 86 | 25–60 months | 2 | 4 |
| Asbestos | 7 | 14 | >5 years | 12 | 24 |
| Cistern type | Last cistern cleaning | ||||
| Concrete/plastic | 22 | 65 | <1 month | 5 | 15 |
| Asbestos | 11 | 32 | 1–6 months | 8 | 26 |
| Frequency of tank cleaning | 6–12 months | 10 | 29 | ||
| >1 year | 23 | 46 | 12–24 months | 4 | 12 |
| 1–3 years | 6 | 12 | 25–60 months | 1 | 3 |
| 3–5 years | 3 | 6 | >5 years | 8 | 24 |
| >10 years | 19 | 37 | |||
| Frequency of cistern cleaning | |||||
| >1 year | 16 | 47 | |||
| 1–3 years | 3 | 9 | |||
| 3–5 years | 0 | 0 | |||
| >10 years | 15 | 44 | |||
a Number of answers.