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Aquastore® tanks are glass-fused-to-steel tanks used to store water and other industrial liquids. More than 100,000 have been installed in over 70 countries around the world.


Aquastore glass-fused-to steel has become the premium water and liquid storage technology leader.


Glass-Fused-To-Steel Liquid Storage Tanks

Glass-fused-to steel has become the premium water and liquid storage technology leader. Aquastore owners choose glass-fused-to-steel technology over other tank designs for several reasons.

  • Lowest maintenance requirements over tank life
  • Lowest total life cycle cost
  • Faster construction
  • Expandable
  • Available in diameters from 11 feet (3.3 m) to 204 feet (62.2 m) and capacity from 20,000 gallons (75 cu m) to over 6 million gallons (22,700 cu m)
  • Specific tank designs, options and accessories to meet customer needs

Engineered For Performance

Aquastore CEU Button

Aquastore tank designs incorporate recognized standards assuring high quality and long-lasting municipal and industrial service liquid storage tanks. Materials are carefully selected and inspected for conformance to rigid specifications. These design and material standards are proven in thousands of tanks all over the world.

CST manufactures tanks in an ISO 9001:2008 certified facility. Standards include but are not limited to:

  • ANSI/AWWA D103 – Bolted Steel Water Storage Tanks
  • AISC
  • IBC
  • NBCC
  • FM 4020/4021
  • NFPA Standard 22
  • British Standard 7543:2003
  • EN 15282 / ISO 28765

Cathodic Protection  

Aquastore's cathodic protection system consists of sacrificial anodes that mitigate corrosion and provide protection to internal submerged surfaces of the tank. The cathodic protection system is incorporated into the Aquastore tank's warranty. The system is simple, reliable and requires only minimum inspection and maintenance.

Aquastore History  

CST Storage (formerly A.O. Smith) began manufacturing glass-fused-to steel tanks for the agricultural market under the name Harvestore. In the 1970s, Aquastore tanks were developed for use in municipal and industrial water and wastewater applications. The use of Aquastore tanks has since expanded to include numerous industrial liquid applications and digesters. Now more than 100,000 glass-fused-to-steel tanks have been installed in over 70 countries around the world.

A recent survey of our North American dealers indicated that of the over 800 Aquastore tanks that were manufactured more than 20 years ago, more than 95% are still in service including the first tank now to have been commercially manufactured over 30 years ago. Of those tanks no longer in service, many are in service-ready condition or in service at a new location.


CST's Aquastore glass-fused-to-steel storage tanks are ideal for the following applications:

Potable Water Storage

Whether multiple tanks over 5MM gallons or a single tank of 5,000 gallons, CST's Aquastore glass-fused-to-steel water tank provides the lowest life cycle cost. Aquastore tanks are durable, easy to construct and never need repainting.

Composite Elevated Liquid Storage

What better place to have a tank that never needs painting than 100 feet up in the air. Fast construction times, ultra-low maintenance and expandability are just some of the features that are causing engineers to specify Aquastore CET's.

Industrial Liquids Storage

CST storage tanks are ideally suited for thousands of industrial liquid applications.  CST has a complete product line of storage technologies, custom engineered for each application.

BioEnergy/Digesters Storage

CST has been designing and manufacturing digester, biofuel and biomass glass-fused-to-steel storage tanks with the most comprehensive lines of roof and cover options for more than 100 years.  

Wastewater Storage

CST manufactures low maintenance, high durability tanks for almost every aboveground wastewater application. Aquastore tanks are utilized for clarifiers, aeration, trickling filters, sludge tanks, storm water retention tanks, flow equalizations, and sequencing batch reactor.

Landfill Leachate Storage

Aquastore tanks are manufactured using glassed-fused-to-steel technology – inert interior and exterior coating that resist corrosion by the toughest liquids.  Because of Aquastore’s proprietary glass-fused-to-steel technology, our tanks out perform any other leachate storage tank. 

Aquastore primary and secondary tanks are flexible in design and can expand to meet your growing leachate capacity.  Glass-fused-to-steel tanks require very low maintenance and never need repainting.



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