The Rain Guardian is a pretreatment system for biorention that captures sediment and larger debris. Rain Guardian is offered in two different configurations based on project needs, a turret and a bunker. Rain Guardian turrets are suggested for commerical and industrial use, while the bunkers are suggested for residential use, due to the turret's ability to support both pedestrian and light vehicle traffic.
The top grate of the structures initially captures leaf litter and larger debris, while the chamber base and filter wall capture and house smaller particles before the stormwater enters the bioretention system. This pretreatment prevents stormwater passing by the bioretention system before it reaches capacity.
Rain Guardian offers simple installation and maintenance, with placement taking just minutes and the ability to be retrofitted to existing structures. Maintenance involves removal of sediment and debris with a shovel and cleaning the drop-in filter with a broom or hose.