Q - How can pre-filtered water enter a SuDS feature and avoid future blockage?
Where runoff has passed through a permeable surface or protected outlet there will be no debris in the runoff so a basket inlet may be appropriate. The basket inlet prevents accidental or intentional blockage of the pipe carrying water into a SuDS swale, basin, pond or wetland.
Q - How can an outlet be protected from blockage?
Water generally passes slowly through the SuDS ‘management train’ as the flow rate is controlled every time it passes from one SuDS feature to the next. Silt settles out and debris is not forced against the outlet structure. Very fine silt may remain in suspension and be carried through the pipe connection. The basket mesh and stone fill prevents any floating debris blocking the pipe entry.