The Norwesco 6502 Gallon Vertical Liquid Storage Tank in black is a bulk-volume polyethylene tank built for high-capacity static storage where the footprint stays tight and the column goes up. It stands 196 inches tall on a 102 x 102 inch square footprint, holds 6,502 gallons, and carries a 1.5 specific gravity rating - the structural margin that lets it hold heavier-than-water contents without exceeding the wall's design limits. The black, opaque resin blocks light, which helps slow algae growth in stored water and shields light-sensitive contents during long dwell times. The tradeoff is that you lose the see-through level check a translucent wall gives you, so plan a sight tube or level indicator into the fitting layout.
Will it work for your site
On a tank this size the deciding factors are weight, headroom, and the slender profile. Filled with water it carries roughly 54,227 pounds; at its full 1.5 SG content rating it can hold up to 81,340 pounds of liquid. That load lands on a 102 x 102 inch base, so the pad underneath has to be engineered for the concentrated dead load - see our concrete pad sizing guide for the ACI framework before you pour. At 196 inches tall on a 102 inch base, this is close to a 2:1 height-to-width column, so factor anchoring, wind loading, and any seismic restraint for the empty and partially-full states - not just the dead load when full. Confirm overhead clearance for delivery, the fill plumbing, and any roof or canopy above the install point. To check the volume against your draw and refill cycle, run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide.
Fittings and configuration
Outlet and bulkhead fitting placement for this tank is shown on the technical drawing on this page - confirm three things against your plumbing before you order: the fitting and bulkhead thread and size against your inlet, outlet, and overflow lines; the gasket material against whatever you intend to store; and the operating temperature range. A mismatch on a tank this size is expensive to work around in the field. The vertical storage tank profile suits long-term water reserves, fire-water reservoirs, and reuse storage. If you are sizing a static reserve for private fire protection, our guide on fire-water reservoir tank design walks through NFPA 22 sizing discipline and cold-climate freeze protection; for grey-water, rainwater, and condensate aggregation, see our industrial water reuse tank topology guide. For a full walkthrough of this exact model, read the 6502 Gallon Vertical Liquid Storage Tank buyer's guide.
The mistake to avoid
The 1.5 specific gravity rating is a ceiling, not a guarantee for every liquid. It tells you the tank is engineered to hold contents up to 1.5 times the density of water - but density is only half the question. Before you store anything other than water, verify the contents against the resin, the fitting and gasket materials, and the operating temperature. This tank already sits at the high end of the SG range; if your liquid is denser than 1.5 SG, this is not the tank for it - call 866-418-1777 for a higher-rated configuration rather than pushing this one past its design limit. Storing a denser or chemically aggressive liquid than the tank was built for is the failure mode that turns a long-service tank into a leak.
This Norwesco vertical storage tank ships LTL freight as an empty tank - the 81,340 lb figure is filled-content weight, not shipping weight, so don't read it as a freight-class number. It quotes live to your ZIP from the nearest stocking plant, which for this tank is Albertville, AL. Get a real freight number through our Freight Cost Estimator or call 866-418-1777 to confirm clearance, lead time, and the right fitting configuration before you order.
