The Norwesco 2500 Gallon Dark Green Vertical Water Storage Tank is a 2,500-gallon polyethylene vertical tank built for bulk water storage at homesteads, ranches, rural fire-water reservoirs, and industrial water-reuse trains. It stands 79 inches tall on a 102 x 102 inch square footprint, and the dark green color cuts algae growth in outdoor sunlight. Rated for a specific gravity of 1.0, it is engineered for water and water-weight contents up to its full capacity. It ships from the Norwesco plant in Washougal, WA, so plan that West Coast origin into your freight cost - run your ZIP through our Freight Cost Estimator before you commit.
Will it work for your site?
Full to 2,500 gallons, this tank carries 20,850 pounds of water, which is also its maximum rated contents weight at the 1.0 specific gravity rating. That number drives everything downstream: your foundation, your pad, and your fill discipline. Spread across the 102 x 102 inch footprint (about 72 square feet), a full tank puts roughly 289 pounds per square foot of distributed load on whatever it sits on. Plan that against a level, fully supporting base - polyethylene tanks need uniform bearing under the entire floor, not point supports. Account for the 79-inch height too, so you have overhead clearance for the lid, fill access, and any float-valve column. For above-ground installs, our Concrete Pad Sizing for Above-Ground Polyethylene Tanks guide works through the ACI 360R-10 framework for sizing the slab under a load this size. If you are still confirming the right capacity for your draw and refill cycle, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide.
Fittings and commissioning
Fitting sizes are not standardized in our listing data for this vertical storage tank, so the technical drawing on this page is the authority - see it for exact inlet, outlet, and lid placement and the clearances you need before you plumb the manifold. When the tank lands and the pad is set, fill it with water and watch it before you trust it: our Hydrostatic Test Methodology for New-Install Tank Acceptance guide covers the water-fill acceptance sequence, pad-settlement monitoring, and fitting leak-detection so a slow weep doesn't turn into a washout later.
Common uses and the mistake to avoid
This is a workhorse vertical water storage tank for general water supply, ranch and irrigation reserve, and aggregated reuse storage. For rural and remote fire protection, our Fire-Water Reservoir Tank Design guide covers NFPA 22 sizing discipline and cold-climate freeze protection; for grey-water, rainwater, and HVAC condensate trains, the Industrial Water Reuse Tank Topology guide maps quality-banded storage. The mistake to avoid: this tank is rated for a specific gravity of 1.0, which means it is sized for water-weight contents only. Storing a heavier-than-water liquid in a 1.0-rated water tank overloads the wall beyond what it was built to carry - if your contents are denser than water, you need a higher-SG-rated tank, not this one.
This 2,500-gallon vertical water storage tank ships LTL freight from the Norwesco plant in Washougal, WA, with freight quoted live to your ZIP. Get a freight number in seconds with our Freight Cost Estimator, or call 866-418-1777 and we'll quote it for you.
