The Norwesco 2500 Gallon Black Vertical Storage Tank (SKU 40051B) is a 2,500-gallon polyethylene vertical tank built for above-ground bulk water storage where you need real volume on a single footprint. The black resin limits light penetration, which makes this size a workhorse for rural water supply, fire-protection reservoirs, agricultural fill, rainwater storage, and process water staging. The specs you need to plan the install are below, and the technical drawing on this page carries the exact dimensions, fitting locations, and outlet sizing for the as-built unit.
Will it work for your site?
This is a vertical storage tank molded from polyethylene at 2,500 gallons of nominal capacity. The number that drives most of your planning decisions is weight when full: at 2,500 gallons of water this tank carries roughly 20,850 lb of contents. That load dictates your pad. A flat, level, fully supporting foundation - typically a reinforced concrete pad or a compacted, continuous base that bears the entire tank bottom - is not optional at this weight. Our concrete pad sizing guide walks the ACI 360R-10 framework for above-ground poly tanks so the slab is matched to the loaded weight. If you are still confirming the right capacity for your draw rate or reservoir target, run the Tank Sizing Calculator or read the Tank Sizing Guide first. For inlet, outlet, bulkhead fitting, and lid location, work from the technical drawing on this page rather than assuming - and confirm the fitting and gasket shown there before you order mating adapters, since configurations vary by mold.
Common uses and sizing notes
At 2,500 gallons, this Norwesco vertical storage tank sits in the range buyers reach for when a smaller tank runs dry too fast. If you are designing rural or remote fire-water storage, our guide on fire-water reservoir tank design covers NFPA 22 sizing discipline and freeze protection for cold-climate service - both of which affect how you place and plumb a tank this size. For reuse projects, the industrial water reuse tank topology guide shows how a tank like this fits a grey-water, rainwater, or HVAC condensate aggregation train, and the rainwater harvesting guide covers first-flush diverter sizing if you are collecting roof runoff.
The mistake to avoid
The error that costs the most on a 2,500-gallon tank is underbuilding the foundation. People size the slab for an empty tank and forget that water alone adds about 20,850 lb. Pour or compact the base for the loaded weight, keep it dead level, and support the full tank bottom - a poly tank flexes, and a tank set on uneven or partial bearing can deform or crack over time. Second, this is a water storage tank: do not put a liquid heavier than water into a tank rated for water service without confirming the resin and specific-gravity rating first. If your stored liquid is heavier than water, you need a tank specified for that higher specific gravity - call 866-418-1777 and we will match you to a higher-SG-rated tank.
This tank ships LTL freight, quoted live to your ZIP from the nearest Norwesco plant - production runs from Burnet, TX; Fairfield, TX; Griffin, GA; Hanford, CA; Lancaster, OH; Merced, CA; Owego, NY; Shawnee, OK; Sheldon, IA; St. Bonifacius, MN; Tooele, UT; and Washougal, WA, so your rate depends on which plant is closest to you. Get an exact number with the Freight Cost Estimator, or call 866-418-1777 and we will confirm capacity, fittings, and the best-shipping plant for your delivery.
