This document is the FlexStorm Inlet Filter Operation & Maintenance Guide. Installation, inspection, maintenance and sediment bag replacement discussed.

Installation Instructions are to remove grate from the inlet. Clean debris from the ledges of the inlet. Place the inlet filter onto the load bearing ledges of the structure. Replace the grate and confirm it’s not elevated more than 1/8” (3.2 mm).

Frequency of Inspections should occur following rain events >½”. (> 12.5 mm). Temporary use filters should be monitored accordingly to current site runoff conditions. Permanent use filter inspections to occur a minimum of 3 times per year and in snowfall affected regions, inspections prior to and after snowfall season. Industrial application site inspections (loading ramps, wash racks & maintenance facilities) to be scheduled on a recurring basis no less than 4 times per year or as needed.

Maintenance Guidelines are to empty the filter bag manually or by industrial vacuum taking care not to damage the geotextile bag when more than half filled or during scheduled inspection period. Remove compacted silt from sediment bag and flush with medium spray. Permanent filter “PCP” style bags should be pressed or wrung to recover retained oils. ADS oil skimmer pouches solidify and darken when saturated, indicating time for replacement. Dispose of all oil contaminated products and recovered oils in accordance with EPA guidelines. ADS oil skimmer pouches, since a solidifier, will not leach & can be disposed of directly. Inspect and replace bag if torn or punctured.

Sediment Bag Replacement is to remove the bag by loosening or cutting off clamping band. Take the new correctly sized sediment bag and secure hose clamping band to the frame channel as previously removed. Ensure bag is secure and there is no slack around perimeter.

An example of an operation & maintenance log with Inlet ID, date, task performed and initials included.