The Norwesco 8400 gallon black vertical storage tank is a large single-vessel polyethylene tank sized for bulk water storage, rural fire-water reserves, irrigation supply, and industrial process water, where a smaller tank means more refills and more downtime. It stands 188 inches tall on a 119 x 119 inch footprint, holds a full 8,400 gallons, and is molded in black polyethylene. The 1.5 specific gravity rating means the tank is engineered to safely hold contents up to 1.5 times the density of plain water, so the vessel carries a fully rated load rather than running at the edge of its design limit, which also makes it a candidate for storing fluids heavier than water.
Will it work for your site?
This is a vertical storage tank, so plan the layout around the 119 x 119 inch base and confirm clearance before you commit a pad location. At 188 inches the tank stands roughly 15.7 feet tall, so verify doorway, canopy, and overhead-line clearance along with delivery-truck access for a tank this tall before pouring. The numbers that drive your foundation: full of water this tank weighs about 70,056 pounds, and at its maximum rated contents weight (the 1.5 specific gravity figure) it reaches roughly 105,084 pounds. That is a serious static load, and a tank this size belongs on an engineered, level pad sized to spread it. Because this Norwesco tank ships LTL from a single West Coast plant, freight is a real line item worth pricing early, so run your number before you decide. Work through the load math with our Tank Sizing Calculator and read the concrete pad sizing guide for above-ground polyethylene tanks, which walks through the ACI 360R-10 framework and where the ACI 318 boundary applies. If you are still deciding between sizes, the Tank Sizing Guide lays out how to match capacity to demand and refill cadence.
Fire-water, rainwater, and bulk reserve use
At 8,400 gallons, this Norwesco vertical tank is a common building block for rural and remote-site fire-water reservoirs and for water-reuse storage trains. If that is your application, the fire-water reservoir design guide covers NFPA 22 sizing discipline, where polyethylene tanks fit in the private fire-protection stack, and freeze-protection engineering for cold-climate service. For grey-water, rainwater, and HVAC condensate aggregation, the industrial water reuse tank topology guide covers quality-banded storage trains and treatment-stage sequencing. If you are capturing roof runoff, the rainwater-harvesting guide covers first-flush diverter sizing per the Texas Manual on Rainwater Harvesting, 3rd edition.
The mistake to avoid
The most expensive error on a tank this large is under-building the foundation. Sizing a pad for an empty 8,400-gallon shell instead of the 70,056-pound full-water load, or skipping the engineered, level base entirely, leads to settling, uneven support, and stress on the tank wall. Confirm your pad against the full-water and maximum-rated weights above before delivery day. One more step before you order: fitting, outlet, and lid configuration is not specified here, so confirm the exact arrangement your plumbing needs by phone at 866-418-1777. You can also review the technical drawing on this page for the vessel layout.
This tank ships LTL freight from the Norwesco plant in Hanford, CA, with freight quoted live to your ZIP. Get your number with the Freight Cost Estimator, or call 866-418-1777 to lock in delivery and confirm offload requirements for a tank this size.
