The Norwesco 9000 Gallon Black Heavy Duty Vertical Storage Tank is a high-capacity polyethylene vertical tank built for serious bulk water storage. At 9,000 gallons in a 141-inch by 141-inch footprint standing 146 inches tall, it is a durable choice for outdoor above-ground service where UV exposure and freshwater volume both matter, with black color and heavy-duty wall construction. If you have been searching for a Norwesco vertical storage tank in this class, this is the workhorse end of the line.
Will this tank work for your site?
This tank holds 9,000 gallons of water, which weighs roughly 75,060 pounds when filled to capacity. It carries a 1.9 specific gravity rating, with a maximum rated contents weight of 142,614 pounds. That is significant structural headroom: for plain freshwater storage, fire-water reserve, irrigation, or bulk process water, the wall is never working near its limit, and if your future service ever shifts to a denser liquid up to 1.9 SG, the wall is already rated for it. Plan your foundation around the loaded weight, not the empty tank. With more than 75,000 pounds bearing on a 141-by-141-inch footprint, the pad sees roughly 3.8 psi of average bearing pressure before you account for point loads at the chime, so a tank this size demands a properly engineered pad. Our concrete pad sizing guide walks through the ACI 360R-10 framework for above-ground polyethylene tanks, and you can confirm your volume needs with the Tank Sizing Calculator and the Tank Sizing Guide before you commit to a footprint. See the technical drawing on this page for fitting locations and full dimensional detail.
Sizing for fire reserve and water reuse
A 9,000-gallon black vertical storage tank is a strong choice for rural and remote fire-water reservoirs, where stored volume backstops private fire protection. If you are designing around NFPA 22 requirements, our fire-water reservoir tank design guide covers the sizing discipline and the role polyethylene plays in the protection stack. Note that freeze protection is the site designer's responsibility, not a built-in tank feature, so plan heat-trace, insulation, or recirculation into your cold-climate design accordingly. This tank also suits industrial water-reuse trains, aggregating grey water, rainwater, or HVAC condensate into quality-banded storage. The industrial water reuse topology guide explains how to sequence treatment stages around bulk polyethylene storage like this.
The mistake to avoid
The most common error with a tank this large is underbuilding the foundation. The 1.9 specific gravity rating protects the tank wall, not your ground; the pad and subgrade carry the real load. Pour and cure a properly sized concrete pad before the delivery date, and confirm the site is level and accessible for an LTL freight truck, because at roughly 146 inches tall and 141 inches wide this is a tall, oversize load. A second item to settle up front: no fitting or gasket package is specified for this listing, so call 866-418-1777 to confirm the bulkhead outlet size, gasket material, and vent or manway configuration you need before you order.
This Norwesco vertical storage tank ships LTL from the Norwesco plant in St. Bonifacius, Minnesota, with freight quoted live to your ZIP code. Get a freight quote with the Freight Cost Estimator, or call us at 866-418-1777 to confirm sizing, lead time, fittings, and freight before you order. Listed price is before freight.
