The Chem-Tainer 3100 gallon vertical liquid storage tank is a polyethylene bulk-storage workhorse for high-volume water and liquid jobs where one large footprint beats a cluster of smaller verticals. It carries a 102-inch diameter base (102 x 102 footprint), stands 99 inches tall, and holds a full 3,100 gallons in a single vertical tank - the capacity rural fire-water reservoirs, irrigation reserves, industrial process water, and rainwater or grey-water reuse trains call for. If you have been searching for a Chem-Tainer vertical storage tank in this size class, this is the one that anchors the system.
Will it work for your job?
Specifications first, so you can plan the pad and the plumbing. The tank is a 102-inch diameter base (a 102.0 x 102.0 inch footprint) with a 99-inch overall height - size your concrete pad to that full diameter and then some. The polyethylene shell carries a 1.5 specific gravity rating, meaning it is engineered for liquids up to 1.5 times the weight of water. Plan your loads accordingly: filled with water this vertical tank holds roughly 25,854 pounds of contents, and at its maximum rated specific gravity it can carry up to 38,781 pounds. That weight lands entirely on the pad, so a properly sized, level, fully supporting foundation is not optional at this scale. Our Tank Sizing Calculator and Tank Sizing Guide help you confirm this 3,100-gallon storage tank is matched to your volume and refill cycle before you commit. This is an LTL freight-class load - confirm offload access at your site and pull a ZIP quote with our Freight Cost Estimator as you size it in.
The mistake to avoid
The specific-gravity number is where buyers at this size get burned. The 1.5 SG rating is a structural ceiling, not a license to store anything. Run one check before you commit: your_liquid_SG x 8.34 lb/gal x 3,100 gal must stay at or under the 38,781-pound rated ceiling. Water sits at 1.0, so this tank has real headroom for water service; a liquid heavier than 1.5 SG, or a chemical that attacks polyethylene, needs a different tank entirely - work through the Tank Sizing Guide or call 866-418-1777 and we will spec the right shell and seal materials for the contents. At 3,100 gallons the consequences of guessing wrong are measured in tons of liquid, so verify that number first. Fittings - bulkhead, outlet, and lid sizes - are configured per order on a tank this size; call 866-418-1777 to confirm the configuration that matches your plumbing, and review the technical drawing on this page for the base dimensions before you pour.
Sizing it into a bigger system
This 3,100-gallon vertical is frequently specified as the storage core of a larger build. For rural and remote fire-protection work, see our guide on fire-water reservoir tank design and NFPA 22 sizing discipline, which covers how polyethylene tanks fit the private fire-protection stack. If you are aggregating grey-water, rainwater, or HVAC condensate, our breakdown of industrial water reuse tank topology shows where a tank this size sits in a quality-banded storage train. Before you set it, walk through concrete pad sizing for above-ground polyethylene tanks to get the foundation right the first time. Comparing brands in the vertical class? Our Snyder vs Norwesco vs Chem-Tainer vertical storage tank comparison lays out how these makers stack up.
This tank ships LTL freight from the Marked Tree, Arkansas plant, quoted live to your ZIP - get your exact number with our Freight Cost Estimator or call 866-418-1777 and we will quote it by phone. A 3,100-gallon vertical is a freight-class load, so confirm delivery access and offload equipment at your site before it leaves the dock.
