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The advanced properties section (opened using the Advanced Tab under Infiltration System) displays the parameters that describe the hydraulic characteristics for the overflow weir, and the parameters that describe the treatment process in the infiltration system.
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Weir Coefficient
The overflow weir carries a discharge when the water level in the infiltration system pond exceeds the Extended Detention Depth. The overflow weir is modelled as a sharp broad crested weir whose discharge equation is given by:
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