The Norwesco 1550 gallon vertical water storage tank is a dark green polyethylene tank built for bulk water storage where you need real volume without stepping up to a fiberglass or steel cistern. It stands 67 inches tall on an 87-inch round footprint, so it holds 1,550 gallons in a wide, low-slung profile that keeps the center of gravity down and sits stable on a properly prepared pad. The dark green color cuts light penetration to discourage algae growth in stored water, which is why this size is a common choice for vertical storage tank duty on farms, rural homesteads, fire-water reservoirs, and water reuse trains.
- Capacity: 1,550 gallons
- Height: 67 in
- Diameter: ~87 in (87 x 87 in footprint)
- Material: Polyethylene
- Color: Dark Green
- Specific gravity rating: 1.0 (water-weight contents only)
- Full water weight: 12,927 lb
Will it work for your job
This is a 1.0 specific gravity tank, meaning it is rated to hold contents up to the weight of water and no heavier. Filled to capacity it carries 12,927 pounds, and that full-water number is also the maximum rated contents weight for the tank: treat it as the hard design-limit load for the pad and for any fittings or penetrations you add, not a suggestion. Note that 87 x 87 is the round bounding footprint, so size a round pad to roughly an 87-inch diameter rather than pouring a square slab. If you are weighing this size against other capacities, run your numbers through the Tank Sizing Calculator and read the Tank Sizing Guide before you commit.
Pad and install discipline
A 12,927 pound full-water load has to land on a base that can carry it without settling or cracking. A vertical water tank this size needs a flat, level, continuously supported pad under the entire round footprint, not a partial pad or piers. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework for getting that base right. Once it is set, fill it and prove it before you trust it: the hydrostatic test methodology guide covers water-fill acceptance, pad settlement monitoring, and fitting leak checks so you catch problems before the tank is in service.
The mistake to avoid
Do not put anything heavier than water in a 1.0 specific gravity tank. This tank is rated for water and water-weight contents only; storing a denser fluid loads the wall beyond what the resin is built for. If your application is fire-water reservoir storage or aggregated reuse water, our guides on fire-water reservoir tank design and NFPA 22 sizing and industrial water reuse tank topology show how this size fits into the larger storage architecture.
This tank ships LTL freight, quoted live to your ZIP. Norwesco stocks it at plants across the country, in Georgia, New York, Ohio, Oklahoma, Texas, Utah, and Washington, and we route from the one nearest you, which for this tank includes Fairfield TX, Petersburg TX, Griffin GA, Lancaster OH, Owego NY, Shawnee OK, Tooele UT, and Washougal WA. Because freight scales with your distance to the closest plant and this is a heavy full tank, capacity and freight cost go hand in hand, so get a real freight number for your address with the Freight Cost Estimator, or call us at 866-418-1777 and we will quote it and answer any sizing questions on the spot.
