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→Select a surface ponding depth to begin sizing with
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For practices with underdrains see recommended maximum surface ponding depth for each filter media blend in the table above.<br>
For practices with underdrains see recommended maximum surface ponding depth for each filter media blend in the table above.<br>
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* Step 3: Select a design surface ponding depth, d<sub>p</sub>' (m) to begin sizing with:<br>
* Step 3: Select a design surface ponding depth, d<sub>p</sub>' (m) to begin sizing with:<br>
For practices with soft (i.e. landscaped) edges and bowl-shaped ponding areas calculate the mean surface ponding depth:
For practices with soft (i.e. landscaped) edges and bowl-shaped ponding areas calculate the mean surface ponding depth: