Evoqua United States - Canada - EN

Structurally Supported Covers

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Minimize odors and algae with a structurally supported cover system.

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Discontinued product

Minimize odors and algae with a structurally supported cover system.

Discontinued product


Evoqua’s retractable cover systems are structurally supported, cover systems allowing tanks to be securely covered while providing easy access to the tank’s internal components. The cover system consists of a sheet of high-strength, UV-protected, coated fabric tensioned across a low-profile aluminum arched frame spanning the tank opening.​


Features & Benefits

  • Captures odorous offgas for subsequent removal and treatment
  • Can be quickly detached and easily retracted to expose tank contents for inspection or maintenance
  • Yield capital and operating cost savings
  • Custom-designed to support local code loads
  • Can be installed without disrupting plant operation
  • Rainwater automatically runs off the cover to the tank perimeter
  • Durable, UV-protected, and resistant to harsh wastewater environments
  • Option for aluminum walkways for easier retractability
    Option of custom-designed guardrail for increased safety


  • Control odors
  • Block sunlight to limit algae growth
  • Reduce disinfection requirements and the formation of disinfection by-products (DBPs)​
  • Minimize chlorine loss​
  • Prevent debris from entering tanks


Cover Type
  • Rectangular Basins, Above Surface, Structurally Supported, Odor Control, Off Gas Collection, Block Sunlight, Retractable / Removable, Gas Treatment Option