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The maximum flow rate through a bed of filter media (''Q<sub>max, media</sub>'', m<sup>3</sup>/s) may be calculated:
The maximum flow rate through a bed of filter media (''Q<sub>max, media</sub>'', m<sup>3</sup>/s) may be calculated:
<math>Q_{max, m}=\frac{K_{m}\times A_{p}\times \left (\frac{h_{max}}{d_{m}}  \right )}{3600}</math>
<math>Q_{max, m}=K_{m}\times A_{p}\times \left (\frac{h_{max}}{d_{m}}  \right )\times 3.6\times 10^{6}</math>
{{Plainlist|1=Where:
{{Plainlist|1=Where:
*''K<sub>m</sub>'' is the hydraulic conductivity of the filter media (mm/hr),  
*''K<sub>m</sub>'' is the hydraulic conductivity of the filter media (mm/hr),  

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