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EFI's 10-step installation process — refined over 500+ covered lagoon digesters and 30+ years of field experience.
Our team evaluates the site, lagoon dimensions, soil conditions, and system requirements. PE engineers design the complete containment system.
The lagoon bottom and slopes are graded to specification. Proper subgrade is critical for liner longevity.
HDPE liner panels (30–100 mil) are deployed across the prepared subgrade. Each panel is carefully positioned with overlap for welding.
Every seam is welded using wedge or extrusion welders, then destructively tested every 150 linear feet. IAGI-certified quality assurance.
Liner edges are secured in anchor trenches around the perimeter, providing wind and structural resistance rated to 90+ mph.
HDPE gas collection piping and sludge removal systems are installed under the cover, enabling maintenance without ever opening it.
Floating baffles create treatment cells within the lagoon, increasing contact time and improving nutrient removal efficiency.
Covers are fabricated in EFI’s 15,000 SF climate-controlled facility in Gaston, SC. Custom-sized panels for each project.
The floating membrane cover is deployed across the lagoon surface with ballast weight system for negative pressure operation.
Flare systems (Varec 244W), blowers, control panels, and remote monitoring are connected. 24/7 cloud-based monitoring begins.
From site assessment to system commissioning — EFI handles every step. Zero cost to you. We fund 100% of capital expenditure.