The Norwesco 2500 Gallon Dark Green Vertical Water Storage Tank is a polyethylene vertical water tank for bulk above-ground storage on farms, rural sites, and fire-water reservoirs. It holds 2,500 gallons, stands 86 inches tall on a 98-by-98-inch footprint, and is molded in dark green to slow algae growth and blend into outdoor installations. As a vertical storage tank, it puts maximum volume on a compact pad, which is what most water storage applications need when ground space is the constraint.
Will it work for your site
This tank is rated to a specific gravity of 1.0, meaning it is built for water and water-weight contents. Filled to capacity, 2,500 gallons of water weighs roughly 20,850 pounds, which is also the maximum rated contents weight for this tank. That full-water load drives your pad and foundation design more than the empty tank does, so size the slab for the loaded weight (your tank dry weight plus the 20,850-pound water load — read the dry weight off the technical drawing on this page). Footprint is 98 by 98 inches and overall height is 86 inches; confirm both against the technical drawing before you pour, and check that you have overhead clearance above 86 inches for fill and lid access plus working margin around the 98-by-98-inch base. For sizing across a multi-tank train or matching capacity to demand, the Tank Sizing Calculator and Tank Sizing Guide walk through the math. Search terms like vertical storage tank and water storage tank land here because this is the workhorse vertical water tank for that role.
Foundation, install, and fire-water use
Above-ground polyethylene tanks of this size need a properly engineered pad. Our guide on concrete pad sizing for above-ground polyethylene tanks covers the ACI 360R-10 framework and where the ACI 318 boundary sits, so the slab carries the full loaded weight without settling. After install, run a controlled water-fill acceptance per our hydrostatic test methodology to monitor pad settlement and catch fitting leaks during hold time. If this tank is going into a private fire-protection stack, our fire-water reservoir design guide covers NFPA 22 sizing discipline and freeze protection for cold-climate service. Capturing grey-water, rainwater, or HVAC condensate instead? See our water-reuse tank topology guide.
Fittings and the mistake to avoid
Fitting configuration is not specified in this listing, so confirm outlet, bulkhead size, and gasket spec by phone at 866-418-1777 before you order — that way the plumbing you plan around matches what actually ships. The larger mistake to avoid is the 1.0 specific gravity rating: this tank is sized for water, so do not put a heavier-than-water liquid in it expecting the same service life. If your contents are denser than water, you need a higher-SG-rated tank, not this one — call 866-418-1777 and we will point you to an SG-1.5 or SG-1.9 vertical tank rated for that load. The other common miss is under-building the pad: this is a roughly 20,850-pound loaded structure, and a slab poured for the empty weight will settle and stress the tank shell over time.
This tank ships LTL freight from the Norwesco plant in Petersburg, TX, and freight is quoted live to your ZIP. It ships empty, so the carrier rates freight on the tank's class and dimensions (98 by 98 by 86 inches) and dry weight, not the filled 20,850-pound figure. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 and we will quote it for you and answer any spec questions before you order.
