Changes

Jump to navigation Jump to search
Line 87: Line 87:
|'''[[Underdrain|Sub-drain]]'''
|'''[[Underdrain|Sub-drain]]'''
|
|
Optional component; [[Pipes|perforated pipe(s)]] surrounded by [[gravel]] and may be wrapped in [[Geotextile|geotextile filter fabric]]; installed below the [[filter media]] [[soil]] layer to collect and convey treated water to an adjacent drainage system; may also include a flow restrictor.  
Optional component; [[Pipes|perforated pipe(s)]] surrounded by [[gravel]] and may be wrapped in [[Geotextile|geotextile filter fabric]]; installed below the [[filter media]] soil layer to collect and convey treated water to an adjacent drainage system; may also include a flow restrictor.  
|
|
*Include [[Bioretention: Sizing|standpipes]] or access points to provide means of flushing the [[perforated pipe]];
*Include [[Bioretention: Sizing|standpipes]] or access points to provide means of flushing the [[perforated pipe]];

Navigation menu