Grate Pyramid

Grate Pyramid is a reusable inlet protection device used to protect inlet structures from sediment and debris during construction. The heavy duty frame forms a sturdy barricade over most drop inlets. The high-flow geotextile filter skirt stops sediment and debris while allowing the filtered water to leave the site. Built in overflow prevents ponding during major wet weather events. Grate Pyramid attaches easily to the inlet grate with provided attachment hooks. The high flow filter is reusable and replaceable when necessary.

The easy installation of Grate Pyramid provides huge cost savings over the typical wood frame and fabric units. Once construction is complete, the unit can be cleaned and stored for reuse.

The Grate Pyramid should be routinely inspected and maintained throughout the life cycle of the construction project. Top and Base Filter shall be inspected every 3 months, and can be cleaned if necessary. The Grate Pyramid Top and Base Filter can also be replaced if they cannot be used any longer. Discard Grate Pyramid upon completion of the construction project.

–  No lifting of heavy grates

–  Saves on labor

–  Strong, light weight, portable

–  Quick and easy assembly

–  Proven, reliable performance

–  Reusable and easy to clean

–  High Visibility / Added jobsite safety


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