Original Darco Plant in Bennett, CO

Water tank design and marketing has been our core business since 1985.  We provide point of origin shipping from 5 locations across the country.  Darco currently offers the largest direct bury fiberglass water storage tank made in the United States at 80,000 gallons. For more information on Darco please read “History of Darco” in the Blog section.

Plant in San Antonio, TX

We specialize in tanks specifically designed for fire service meeting NFPA standards for both rural fire cisterns and commercial fire sprinklers reservoirs.   Multiple tanks can be manifolded together to increase total water storage or to create a more desirable “footprint” if space is limited or the terrain is restrictive for a single large vessel.

Two 75,000 gallon tanks manifolded together

Darco offers insulated underground tanks for large hot water solar systems as well as chilled water storage tanks for temperature conditioning commercial buildings.

Insulated Solar Thermal Storage Tank

Mission Statement

Most large manufacturers do not have the staff or desire to deal with the public at large so they rely on a network of Private Label Resellers or a Distributor to Dealer marketing system.  For 30 years Darco has provided Private Label underground water storage tanks along with application advise and the proper appurtenances and accessories packaged to meet the needs of each project designer and his installing contractor. We source vessels from 5 different Plants of Origin in 5 different states which allows us to select the plant with the shortest delivery lead time or the plant located closest to the jobsite to reduce transportation expense.