Evoqua’s retractable ArchPro™ 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.​

• 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