Operation - Aqua-Guardian

The Aqua-Guardian™ is suspended inside a catch basin by a stainless steel support collar that serves to funnel runoff into the sediment collection and storage area. This support forms a baffle around the inside of the insert which acts to trap floatable debris, even during overflow conditions.

Operation begins when stormwater enters the Aqua-Guardian™ from the surface and accumulates in the sediment chamber. As runoff continues, water flows through the locked filter screen standpipe and is evenly distributed over the filter media. Water permeates downward by gravity flow through the filter media before exiting the insert through the base plate. As the runoff flow rate continues to increase, water rises in the sediment chamber to the level of the filter screen outlets that are built into the perimeter of the structure. The internal high-flow bypass openings at the top of the structure minimize the potential of water backing onto the surface grade. The baffle formed by the stainless steel support collar prevents captured debris from exiting through the overflow holes.