Suitable for all soils and providing designers, planners and landscape architects the opportunity to manager surface water run-off, nuisance groundwater and localised flooding, GWD will also deal with rainfall at source with no requirement to link up with storm drains or sewers.
The system requires no external energy source and creates little disruption during installation. Boreholes are drilled up to 12m deep and an energy-passive groundwater recharge pump (EGRP) is inserted. The top of the hole is then top dressed with root zone mix. Once activated, the five-chambered EGRP expresses a mild vacuum characteristic and connects horizontal layers of soil, attracting groundwater laterally towards the device before taking it down and redistributing it away from problem areas.
While the system costs approximately 15-20 per cent more than conventional drainage, it requires no maintenance and playing surfaces can be used immediately after installation.