1. Prevents contamination of the aquifer by trapping all kinds of hydrocarbons (oil, grease, gasoline, etc.)

2. Traps debris, silt, heavy metals and solids from going into the drainage system, extending the system's life.

3. Spills containment capacity minimizing expensive cleanups.

4. Easy installation in new or old inlets.

5. Inexpensive, simple maintenance and monitoring.

6. Available for different inlet types or structure sizes.
  Installation and Maintenance  


Hydro-Cartridges® installation is a simple three step process.

  1. Remove the grate and clean the frame
  2. Install the Hydro-Cartridges®
  3. Replace the grate

Storm Drain Filter Inserts   Storm Drain Filter Inserts   Storm Drain Filter Inserts

Click pictures to enlarge


Maintaining the Hydro-Cartridges® is also a simple process.

To determine solid levels, a measuring bar is inserted threw the grate and direct readings are taken. A visual inspection of the absorbent pads can also be done at this time. The grate does not need to be removed. When solid levels reach close to the funnel tip a cleaning is performed.

Cleaning the Hydro-Cartridges® of solids is simple and inexpensive.
Storm Drain Filter Inserts

The funnel length can be adjusted to extend maintenance intervals.


Extract the water from the filter with a pump to a 55 gallon drum or container. The filter can then be pulled from the frame and the solids removed. The filter is then set back in the frame, refilled with the water that was removed and the grate is replaced. If a vacuum truck is used the filter need not be removed.

Replacing the absorbent material requires only lifting the grate for access, sliding the zipper open, and replacing the polymer.

We recommend a visual inspection/measurement on a monthly basis and cleanings to be determined by site requirements. Contact us if you would like a copy of our maintenance sheet. Typical cleanings are done every 3-4 months.



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