The Norwesco 950 Gallon Black Heavy Duty Vertical Storage Tank is a 950-gallon polyethylene vertical tank standing 134 inches tall on a 48 x 48 inch footprint, built for bulk water and liquid storage where vertical height is easier to site than spread. It carries a 1.9 specific gravity rating, the heavy-duty top of the Norwesco vertical line, which is why this tank handles denser contents than a standard 1.5 SG vertical of the same size. The black resin blocks light to slow algae growth in stored water, and the narrow square footprint makes it a practical fit on a concrete pad in a pump house, yard, or remote site.
Will it work for your site?
Plan around two weights. Filled with water, this tank carries roughly 7,923 pounds of contents; at its full 1.9 SG rating it is engineered to hold up to about 15,054 pounds of contents. That second number is the buying reason for denser-service work: the same 48 x 48 inch footprint that holds 950 gallons of water is rated for contents up to 1.9 times the weight of water, a load a standard 1.5 SG vertical of this size cannot carry. Either way, those loaded numbers drive your pad and your anchoring, not the empty tank. A 48 x 48 inch footprint at 134 inches of height is a tall, slender profile, so overturning under wind on an empty or partially full tank is a real concern, and a level, properly sized pad with anchoring matters more here than on a short squat tank. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm 950 gallons covers your draw-down and refill cycle before you commit to the height. For the pad itself, our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework for a load this concentrated.
The mistake to avoid
The 1.9 specific gravity rating is a structural ceiling, not a license to fill this tank with anything. It tells you the tank wall is built for contents up to 1.9 times the weight of water, but it says nothing about chemical compatibility. This is a water-service vertical storage tank as listed here, with no factory fittings specified in this record, so confirm your outlet, fill, and vent fitting sizes against the technical drawing on this page before you order bulkhead hardware, and match the bulkhead gasket or o-ring to that fitting before you plan plumbing. Reusing a vertical storage tank for a denser or aggressive liquid without checking both the SG rating and the resin against the contents is the error that ends in a bulged wall or a failed fitting.
Fit for fire-water and reuse storage
A 950-gallon vertical at 1.9 SG is a common building block for rural fire-water reservoirs and water-reuse trains. If this tank is headed for private fire protection, our write-up on fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing and freeze protection for cold-climate service. For grey-water, rainwater, or HVAC condensate aggregation, see industrial water reuse tank topology for staging multiple tanks into a quality-banded storage train.
This Norwesco vertical storage tank ships LTL freight from the Fairfield, Texas plant, with cost quoted live to your ZIP code. Because it ships from a single Texas plant, freight scales hard with distance, so buyers far from Texas should pull a ZIP quote before budgeting. Get a number now with the Freight Cost Estimator, or call us at 866-418-1777 and we will help you size the tank, confirm fittings against the drawing, and get freight quoted to your site.
