The Norwesco 2100 Gallon Black Vertical Storage Tank is a polyethylene bulk water reservoir rated to a 1.5 specific gravity, standing 89 inches tall on an 87-inch-diameter round base. The black exterior cuts light penetration to slow algae growth in standing water, which makes this size a common pick for rural fire-water reserves, agricultural irrigation supply, rainwater collection, and industrial process and reuse storage. If you are weighing this Norwesco vertical tank against other sizes, the deciding factors below are weight at full load, the pad it sits on, and how it ships to your site.
Will it work for your site?
Filled with water, this tank carries roughly 17,514 pounds of contents. Because the shell is rated to a 1.5 specific gravity, its maximum rated contents weight runs to about 26,271 pounds when storing a heavier-than-water liquid up to that rating. That spread matters: a pad sized only for water can be badly undersized if you later switch to a denser fluid. The flip side is a real advantage if you already know your liquid runs above 1.0 specific gravity. This 1.5-rated shell structurally covers you up to roughly 26,271 pounds of contents, so you size the pad to that load and confirm chemical compatibility separately rather than buying a heavier tank. Plan the foundation around the load you actually intend to store, and keep the base fully and evenly supported. Our Tank Sizing Calculator and Tank Sizing Guide help you confirm this 2100-gallon size fits the duty cycle and refill schedule you have in mind before you commit.
Pad and foundation
An 87-inch round footprint loaded past 17,500 pounds needs a flat, continuous bearing surface. For an above-ground polyethylene tank this size, a properly sized concrete pad is the durable answer; our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework so the slab carries the full rated load without point stress on the tank base. If this reservoir backs a rural or remote fire-protection system, our fire-water reservoir tank design guide covers NFPA 22 sizing discipline and freeze protection for cold-climate service. For greywater, rainwater, or HVAC condensate aggregation, see our industrial water reuse tank topology guide, and for harvesting setups our first-flush diverter sizing guide. Refer to the technical drawing on this page for fitting locations and overall dimensions before you set anchors or plumb the outlet.
The mistake to avoid
The most common error on a tank this large is treating the 1.5 specific gravity rating as a green light to store any liquid. The rating describes the structural load the shell will hold, not chemical resistance. For water service it gives you margin; for anything denser or chemically active, confirm compatibility separately before filling. Just as important on the plumbing side: do not assume your existing pad is adequate because it held a smaller tank, and do not reuse the old tank's plumbing on faith. Match the outlet thread size and confirm you have the correct bulkhead fitting and gasket for that port, verified against the technical drawing on this page, before you connect anything.
Freight
Because Norwesco molds this size at nine plants spanning the country, we ship from the one nearest your ZIP, which is the single biggest lever on LTL cost for a tank this size. Those plants are in Fairfield, TX; Griffin, GA; Hanford, CA; Shawnee, OK; Sheldon, IA; St. Bonifacius, MN; Tooele, UT; Washington Court House, OH; and Washougal, WA. This Norwesco vertical storage tank ships by LTL freight, quoted live to your ZIP code. Get a freight quote with our Freight Cost Estimator, or call 866-418-1777 and we will confirm the closest origin, lead time, and offload requirements for your 2100-gallon black vertical tank.
