The Norwesco 3600 gallon black vertical storage tank is a polyethylene bulk-water reservoir that stands 151 inches tall on an 87 by 87 inch round footprint. That is a roughly 12.5-foot column, so vertical clearance is the first thing to check before anything else: measure your overhead obstructions, door openings, and roof line against the 151 inch height, then plan your pad around the 87 inch base. The tank carries a 1.5 specific gravity rating, which is the structural headroom that matters when you size it. At that rating the wall is engineered to hold contents weighing up to 45,036 pounds; filled with plain water (specific gravity 1.0) it carries roughly 30,024 pounds, leaving substantial margin for the static load of a fire reserve, irrigation supply, or process feed.
Will it work for your install?
This is a vertical storage tank built for above-ground stationary service. The black resin blocks light, which suppresses algae growth in stored water and is the right call for an outdoor reservoir. Plan the install around two numbers: the 151 inch height for clearance and the 87 inch round footprint for your pad. The base sits flat and needs full, continuous support across its entire footprint, so run both dimensions against your available space and your foundation plan before you commit. For help matching this 3600 gallon capacity to your demand and refill cycle, work through the Tank Sizing Calculator and the Tank Sizing Guide.
Sizing the foundation and the load
At roughly 30,024 pounds full of water, this tank puts serious static load on whatever it stands on, and a tall column concentrates that load over the 87 inch base. A concrete pad is the standard answer for a vertical tank this size; size and reinforce the slab for the full contents weight, and follow the design discipline in our guide on concrete pad sizing for above-ground polyethylene tanks. If this reservoir feeds a private fire-protection system, the sizing logic, reserve discipline, and freeze protection are walked through in our write-up on fire-water reservoir tank design for rural and remote sites. For grey-water, rainwater, or HVAC condensate aggregation into banded storage, see our breakdown of industrial water reuse tank topology.
The mistake to avoid
The 1.5 specific gravity rating describes the maximum density of contents the tank wall is rated to hold, not a license to store anything. This is a black vertical water-storage tank; treat that 1.5 figure as structural headroom for heavier-than-water liquids only where the resin chemistry also allows it. For ordinary water service you are well inside the envelope. Outlet and fitting sizes are not listed here, so refer to the technical drawing on this page for fitting locations and outlet detail. Bulkhead fittings and gaskets are sized to that outlet, so confirm the outlet size and gasket material against the drawing or by phone before you order any plumbing.
This Norwesco vertical tank ships from the Hanford, CA plant by LTL freight, quoted live to your ZIP. Get your number on the Freight Cost Estimator, or call 866-418-1777 to talk through the install and place the order.
