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| | See below | | | See below |
| |} | | |} |
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| + | |
| + | ==Sizing with an underdrain pipe== |
| + | # Determine what the planting needs are and assign appropriate depth of media. |
| + | # Determine what the pipe diameter needs to be and assign appropriate depth of reservoir. |
| + | # Determine maximum possible storage reservoir depth (''d<sub>S</sub>''): |
| + | <math>d_{S}=f'\times38.4</math> |
| + | {{Plainlist|1=Where: |
| + | *''f''' = Design infiltration rate in mm/hr}} |
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