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Intake screens are subject to fouling or plugging by aquatic life or vegetation, which can include zebra mussels.

To date, 100% prevention of plugging by mussels is not possible; however Hendrick offers a copper-nickel alloy or a variety of non-toxic coatings to aid in minimizing the problem and allow for easy removal by physical scrubbing or high pressure cleaning.

In addition, a chemical injection system may be specified to disperse an approved biocide into the screen body to control aquatic life that has passed through the screen area. These systems are carefully designed to ensure toxic chemicals are not released into the natural water source.

Hendrick is proactive in solving all types of bio-fouling problems, through working with engineering firms and government agencies to determine environmentally safe solutions to the various types of problems encountered while installing intake screens.

Hendrick Screen also works closely with engineering firms, state and local agencies to ensure the environment is protected.

White paper: "Copper-Nickel Alloys -- Resistance to Corrosion and Biofouling" - by Carol A. Powell, Consultant to Nickel Development Institute

See the Engineering Section for Sample Engineering Specifications & Documents