8,255
edits
Changes
Jump to navigation
Jump to search
mLine 45:
Line 45: − + − −
→Choker course
{{:Reservoir gravel}}
{{:Reservoir gravel}}
===Choker course===
===Choker course===
{{:Choker layer}}
{{:Choker layer}} [[Geotextiles]] may be used to separate the underdrain from native soils on the vertical faces.
[[Geotextiles]] may be used to enclose the underdrain on the vertical faces. It's use in horizontal layers within systems is not recommended as it has been demonstrated to [[clogging|clog]] over time in many installations.
==Alternative Technology==
==Alternative Technology==