Fiberglass Septic Tanks

Orenco's septic tanks set a new onsite industry standard for strength and watertightness. Our injection-molded fiberglass-reinforced polyester (FRP) tanks* are available in 1,000- and 1,500-gallon sizes for residential, commercial, and community systems.

Our injection molding process produces tanks of unmatched quality and consistency. Every tank is tested for watertightness before shipping. The tanks are light enough to transport in a pickup or small trailer and install with a backhoe, yet are far more rigid than polyethylene tanks. In fact, they're strong enough to withstand a four-foot burial depth empty. A baffle wall can be installed anywhere in the tank to create two or more compartments of suitable volume for the application.

Our tanks are sold through a network of authorized tank assemblers and wholesalers.

 *Covered by U.S. Patents #D461,870 and #D445,476