| Function
1: Studded
Sheeting provides the drainage system with a high capacity of 16 litres/m2/sec.
Excellent pressure resistance is achieved even at depths of up
to 10 metres.
Function
2: Special Geotextile
non-woven polypropylene filter layer welded to the top of the studs effectively
filters out fines and prevents clogging. Filter performance remains unaltered
at maximum capacity. Alderdrain is laid to join up with the land drainage
system.
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