Sewage & Wastewater

Sewage & Wastewater

Underground Sewage and Wastewater Treatment Tanks

SEWAGE HOLDING / WASTEWATER TREATMENT installations using Darco Underground Fiberglass Tanks must be engineered and approved for each specific application.  Since the smallest wastewater tank we manufacture is 10,000 gallons, our systems are normally too large for single family homes.

Darco wastewater treatment and holding tanks are more likely to be used in commercial sites, restaurants, campgrounds, and other applications requiring a larger process capacity.  Darco Staff will work with your Wastewater Engineer to generate a design for approval by the Local Authority having jurisdiction over on-site wastewater treatment and disposal systems.

Our fiberglass tanks are also commonly used as sewage holding vaults where no public sewer is available and on-site treatment is not feasible.  Vaults must also be designed and approved for each specific application and site.  Such tanks must be routinely pumped by a licensed wastewater transporter.  Wastewater treatment plants often install underground surge tanks to capture excess influent and help even out the flow during peak water use periods of each day.

Fiberglass tanks are preferred by Building Officials in environmentally sensitive areas because they are manufactured as a one-piece vessel without sections or joints, completely watertight, and unaffected by the acids which attack concrete tanks.