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*The overflow must be situated at the far end of the facility to prevent any localised ponding to cause bypassing of the infiltration facility.
*Offline facilities use flow splitters or bypass channels that only allow the required water quality storage volume to enter the facility.
:Higher flows are diverted and do not enter the infiltration practice. A pipe can by used for this, but a [[weir ]] or [[curb cuts|curb cut]] minimizes clogging and reduces the maintenance frequency.
===Overflow elevation===

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