The Norwesco 12000 Gallon Black Heavy Duty Vertical Storage Tank (SKU 43921B) holds a full 12,000 gallons of water in a 141-inch diameter footprint that stands 193 inches tall. It is molded from heavy-duty polyethylene in black, with a 1.9 specific gravity rating - meaning the wall is built to carry liquids up to 1.9 times the weight of water. For straight water storage that rating leaves a deep structural margin, which is exactly what you want in a vertical storage tank this size.
Will it work for your site?
Filled with water, this Norwesco vertical tank carries about 100,080 pounds of contents, and its wall is rated for a maximum contents load of 190,152 pounds at the 1.9 specific gravity ceiling. That is real engineering data, not a guess: at full water weight you are placing roughly 50 tons on the pad, so the foundation has to be designed for it. Top access is via a 22-inch lid, per the current technical drawing - see the technical drawing on this page for the lid location and connection layout before you plumb it. Bulkhead fittings, gaskets, and outlet sizing are specified per your plumbing plan and the drawing, so confirm fitting and connection positions against the drawing rather than assuming a standard configuration. We will confirm what is included before you order.
Sizing and foundation
Footprint is 141 in x 141 in (about 11.75 ft square), standing 193 in tall (about 16.1 ft), and at 100,080 pounds full this is a structural decision as much as a storage one. Run your numbers through the Tank Sizing Calculator and the Tank Sizing Guide to confirm this capacity matches your draw and refill cycle. For the pad itself, the concrete pad sizing guide walks through the ACI 360R-10 framework for above-ground poly tanks of this weight - do not set a tank this heavy on undersized or unlevel concrete. If this tank is feeding a rural fire-protection reservoir, the fire-water reservoir design guide covers NFPA 22 sizing and cold-climate freeze protection. For greywater, rainwater, or HVAC condensate aggregation, see the industrial water reuse topology guide for tying multiple storage tanks into a quality-banded train.
The mistake to avoid
The most common error on a tank this large is treating it as a drop-in delivery. It is not. At 193 inches tall and 141 inches in diameter, this is an oversized load with a serious empty footprint, and your pad, access road, and crane or equipment for offloading all need to be ready before it arrives. The second mistake is over-spending on specific gravity you do not need versus under-building the foundation that you do - the 1.9 rating is plenty for water; the pad is where projects on this scale go wrong. Plan the foundation first.
This Norwesco vertical storage tank ships LTL freight, quoted live to your ZIP code. It is stocked from four regional Norwesco plants - Fairfield, TX; Hanford, CA; St. Bonifacius, MN; and Washington Court House, OH - so your freight is quoted from the closest origin to your ZIP rather than one coast. Run it through our Freight Cost Estimator to see which plant serves you, or call 866-418-1777 to coordinate delivery and offloading for a tank of this size. Because of the oversized footprint, talk through site access with us before you order.
