Norwesco 500 Gallon Black Vertical Storage Tank

The Norwesco 500 Gallon Black Vertical Storage Tank is a 500-gallon polyethylene vertical tank that stands 73 inches tall on a 48 x 48 inch footprint, making it a practical choice for water storage where vertical space is available but floor area is limited. The black exterior blocks light to slow algae growth in stored water, and the tank carries a 1.5 specific gravity rating, so it handles full water loads with rated headroom to spare.

Will this 500 gallon tank work for your site?

Filled with water at 8.34 lb per gallon, this tank carries roughly 4,170 lb of contents at capacity, and its 1.5 specific gravity rating means it is engineered to hold contents weighing up to about 6,255 lb. That margin is what lets you run it full of water without crowding the design limit. The footprint is a compact 48 x 48 inches, so the tank goes up rather than out, but it concentrates several thousand pounds onto that small area. If you are still confirming whether 500 gallons matches your draw-and-refill cycle, run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide. See the technical drawing on this page for the molded inlet, outlet, and vent locations so you can plan your plumbing runs before the tank arrives.

Foundation: get the base right

The single most common error with a vertical storage tank this size is treating the ground under it as good enough. A 500-gallon vertical tank that sits on uneven, soft, or partially supported ground can distort or stress the wall over time, especially through repeated fill-and-draw cycles. Give it a flat, continuous, load-rated pad sized for the full contents weight, and keep the inlet and outlet plumbed without strain on the molded fittings. Our guide to concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework for getting that foundation right.

Common applications

This is a workhorse 500 gallon vertical storage tank for water, irrigation supply, rainwater collection, and bulk liquid storage. For rural and remote properties, a vertical tank of this size is a common building block for on-site water reserves; our fire-water reservoir tank design guide covers how polyethylene tanks fit into private fire-protection and freeze-protection planning. If you are aggregating grey water, rainwater, or HVAC condensate for reuse, the industrial water reuse tank topology guide shows how a vertical storage tank like this slots into a quality-banded storage train.

This 500 gallon tank ships LTL freight, quoted live to your ZIP code. Norwesco molds it at nine plants nationwide, so we ship from the one nearest you among Fairfield, TX; Griffin, GA; Hanford, CA; Owego, NY; Shawnee, OK; St. Bonifacius, MN; Tooele, UT; Washington Court House, OH; and Washougal, WA, which keeps your freight on the shortest practical lane. Get an instant estimate with our Freight Cost Estimator, or call us at 866-418-1777 and we will quote it for you.