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500 gallon Texas Tank

Atlanta, GA 30341, USA             404-991-0404

Flat Roof – Suffix "F"

30° Roof Standard

Note: tanks from various manufacturers shown.


Tank Models and Sizes

GWT Exclusive!

Design Guide

Above Ground Steel Water Tanks 
Above Ground, Corrugated Steel

Benefits of Above-Ground Tanks

  1. Cost - Above ground tanks cost approximately 40% less than below ground tanks.  Especially in areas of Georgia with rocky soil or high water table, above ground tanks are worth extra consideration. Cost savings are due to:
    a.  Reduced Shipping Costs
    b.  Reduced Material Handling Costs - carried by hand or skid-steer on the jobsite, not a crane.
    c.  Reduced Sitework - pouring a concrete foundation vs. excavating.

  2. Maintenance - With a properly functioning prefilter, neither tank requires much maintenance. Maybe every few years. In the past, both above and below ground tanks required confined space safety procedures. However, access hatches allowing egress through the liners are the next technological breakthrough for these tanks.

  3. Pumping - With positive suction pressure, pumps run smoother and more efficiently. Pumps can be located inside a mechanical room, safe from the environment and eliminating the need to run high voltage electricity outdoors.

  4. We should not neglect the publicity aspect of above-ground tanks. Those that want to spend the extra money on green initiatives often want their neighbors to know. For businesses, it's good business to subtly let your customers know that you care about the earth.

  5. Steel tanks have a certain look, that matches the design of many modern buildings. For buildings with a brick or stone veneer, that look can be extended to the tank.

Challenges of Above-Ground Tanks

  1. Freeze Protection - The biggest challenge with freeze protection is not the tank itself, but any piping with sitting water. The current generation of tanks solved that problem for the most part, with piping penetrations inside the tank.  The mass of water in the tank will freeze on the surface, but it will not damage the tank. Freeze protection in Georgia can be accomplished with smart recirculation, keeping initial costs low.

  2. Aesthetics - The Great Debate among engineers: are the tanks something to hide or something to show?.  With a tank such as this in full view of passersby and customers, people will certainly know that the business owner is collecting rainwater.  As described inthis Freakanomics article, that might be very desirable indeed.

    By far the most common visual option is unpainted galvanized steel. Epoxy coating and urethane mastic is available.  For a different look, the exterior can be clad in wooden planks to simulate staves, or stone or brick.

  3. Space - The best tactic for maximizing space is to size the tank for the usage, not expected rainfall. This also reduces the cost of the project. ​

GWT – 1800 - 300,000 Gallons

GWT tanks are superior in quality, and provides the best service in the industry. Our exclusive non-prorated 20-year warranty is the strongest of any company like it. Georgia Water Tanks adds on to the parts-only warranty, so the 20 YEAR WARRANTY INCLUDES LABOR. The liner attachment method is a true industry innovation, one that others will soon imitate. 

Texas Metal Tanks – 140 - 3750 Gallons

Texas Metal Tanks manufactures both traditional galvanized steel cisterns and stainless steel cisterns.  The galvanized steel tanks are G-90 grade 20 gauge metal made in the USA.  We do not import foreign steel.  The top is 22 gauge.  After the tank is constructed, a paint / epoxy lining is applied to the interior of the tank to provide a protective barrier between the water and the metal itself.  This product is FDA approved for potable (drinking) water applications and is ANSI / NSF 61 certified.  Each tank is tested at the factory to ensure that it is watertight.  With almost 90 years of history, these tanks have a typical lifespan of 30 - 35 years.  Galvanized tanks have a one-year warranty.

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