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Catch Basin Sediment Bags


SKU MM-DS-24-24

Our catch basin sediment bags are made with patented technology that give you the best storm grate filtration design. They are incredibly strong open top catch basin sediment bags and are designed specifically to hang below the storm grate to filter the thickest sediment from stormwater.

The sediment and silt solids are able to separate out of the slowed water flow and are conveniently kept in the catch basin sediment bag making them the reliable choice for your storm water protection.

The catch basin sediment bags are proudly made in the USA from bright orange monofilament geotextile, with internal straps that add additional support for installation and removal. They are available in 4 standard sizes to meet your project needs.


Product Specifics

  • Free Shipping
  • Need a Written Quote
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  • Questions? Call (800) 640-5537

Product Features

  • Affordable price
  • Super easy installation. No rebar required
  • Internal straps cradle the grate for added support and security when installing and removing
  • Two-foot containment area is manageable
  • Easily seen because it's fabricated from a bright orange monofilament geotextile


  • FREE SHIPPING (standard ground, see map)
  • Call: (800) 604-5537 for pricing and ship times

Shipping estimates shown on the map pertain to this specific product only. Orders typically ship in 1-3 business days if the order is placed before 12:00 noon EST. Transit times displayed in the map are listed in business days, and are approximate. The day that the order is shipped is not counted as a transit day.

Installation and Maintenance Guidelines


  • Remove the grate from catch basin.
  • If using optional oil absorbents, place absorbent pillow in pouch on bottom of the unit.
  • Stand the grate on end. Move the top lifting straps out of the way and place the grate into the Dandy Sack so that the grate is below the top straps and above the lower straps.
  • Holding the lifting straps, insert the grate into the inlet.
  • Maintenance:

    •  Remove all accumulated sediment and debris from vicinity of the unit after each storm event.
    • After storm event and at regular intervals, look into Dandy Sack. If containment area is more than 1/3 full of sediment, the unit must be emptied.
    • To empty unit, simply lift the unit using lifting straps and remove the grate. If using optional oil absorbents, replace absorbent pillow when near saturation.
Inlet Protection System Manufacturing

Dandy Sack in Production

Dandy Inlet Protection Systems

Dandy Sack is a high quality, and uniquely designed inlet protection product. It is made of safety orange monofilament geotextile which helps it to look new even after multiple uses. The suspended solids settled out of the slowed flow and then captured by the Dandy Sack prior to entering the inlet.

All Dandy Products are made in America.

Best Practices For Storm Drain Protection

Catch Basin Sediment Bag Under Grate

Curb Catch Basin Sediment Bag Installed

Best Management Practices For Small Construction Sites

Storm drain inlet protection efforts are temporary and should be in place before disturbance. A fabric barrier placed around an inlet offers a shield against sediment while still allowing water to flow into the drain. These structures must be maintained on a regular basis and addressed after each storm event.

Sod Installation

To ensure permanent inlet protection after the surrounding area has been stabilized, you should consider sod installation. This practice is a permanent step for creating a great look to slow stormwater close by the drop-inlet entrance and remove sediments and other pollutants from runoff.

That said, this step should not be carried out until the entire surrounding drainage area is stabilized. Lay the sod in order for it to extend at least 4 feet from the inlet in each direction to create a mat around the inlet. Lay the strips crosswise in the direction of the flow. Make sure to stagger the strips so they are not aligned.

Straw bales should never be used on sidewalks or streets known for heavy rain events because they cannot be staked into concrete or asphalt, they will simply float away.

Check dams are small structures built across a swale or channel on a temporary basis. These structures will slow down the flow of water which will help reduce erosion. As stormwater runoff flows through the structure, the check dam will catch sediment from the channel or from the contributing drainage area.

Geotextile fabric can be used in various situations for erosion control on construction sites. They can be used as matting to stabilize the flow of swales, and channels, or to protect seeding on recently planted slopes until the seeding is established. Also, geotextile can be used as a separator between riprap and soil which can prevent soil from being eroded from underneath the riprap while maintaining its base.

men Installing Catch Basin Sediment Bag

Sediment Bag for Catch Basin Installation