Maintenance - Aqua-Guardian™ Catch Basin Insert

Consistently implemented maintenance programs are essential to ensure the long term functionality and performance of the Aqua-Guardian™ Catch Basin Insert. A routine inspection and maintenance program should address (1) the volume or load of the contaminants of concern, (2) the frequency of releases of contaminants at the site, and (3) the characteristics of the drainage area. An Inspection and Maintenance Manual is provided for each project installation to track ongoing maintenance needs. We recommend that Aqua-Guardian™ inserts be inspected after significant storm events following installation to determine an appropriate maintenance frequency. At a minimum, these insert devices should be inspected on a monthly to quarterly basis.

Aqua-Guardian™ inspections can usually be accomplished from the surface without the need to remove the catch basin grate. Use a tape measure to gauge the amount of sediment in the collection area. When the sediment level reaches the bottom of the perimeter filter screen outlets, the unit should be serviced. The first step in maintaining a unit requires the removal of the surface grate cover. A wet/dry shop-vac is often used to remove debris and sediment collected inside the chamber; and of course, other larger vacuum systems can be used as warranted. The locking centerpiece is removed by rotating the assembly with the “T” handle on top of the filter screen standpipe. Once the centerpiece assembly is removed, the filter container will be visible and ready for removal. Next, remove any residual sediment in the filter area and place a new filter container in the unit. Press down on all sides of the newly installed filter container to ensure good contact with the outside walls. The centerpiece assembly is then replaced and rotated (or locked) under the fitted guides. Maintenance is completed by returning the surface grate cover to its normal position.