 | SpecificationsSlow Sand Filter Specifications
| No.
| Metric
| Value
| 1
| Flow rate
| 1 L/min
| 2
| Stop using filter when
| Flow rate is less than .25 L/min
| 3
| Coli form test
| Pass
| 4
| Percent bacteria removed
| 99.9%
| 5
| Average time to construct
| 1 Day
| 6
| Schmutzdecke Growth Time
| <2 weeks
| 7
| Average life of filter
| 20000 liters
|
Test Kit Specifications
| No.
| Metric
| Value
| 1
| Coliform presence/absence Cost
| 25 cents/test
| 2
| Ph Test Cost
| 12.3 cents/test
| 3
| Testing Time
| 48 hours
|
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