The Norwesco 8400 Gallon Vertical Liquid Storage Tank is one of the largest single-piece polyethylene tanks in production, built for bulk water storage where you need serious volume in a stable vertical footprint. Molded from high-density linear polyethylene in a blue tint, it carries an 8,400-gallon working capacity, stands 188 inches tall on a 119 x 119 inch base, and is rated to a 1.9 specific gravity. That rating sits well above water (1.0), so when this tank holds plain water it runs at roughly 53% of its rated wall load (70,056 lb of water against a 133,106 lb maximum) - the wall is not borderline-spec'd for water, and the same tank is ready for denser liquids up to 1.9 SG without a tank swap.
Will it work for your site?
This is a true vertical storage tank: a tall cylindrical body on a flat bottom that sits on a properly prepared pad and stores liquid under atmospheric (gravity) head, not pressure. Plan the foundation around the loads, not just the gallons. Filled with water, the tank and contents weigh roughly 70,056 pounds; at its full 1.9 SG rating the contents alone can reach about 133,106 pounds. A 119 x 119 inch footprint - just under 10 feet square - needs a level, continuously supported concrete or compacted base sized for that bearing load. One thing buyers miss: the tank sets DRY and light because the contents are the load, so your crane or forklift offload is spec'd to the empty vessel while the pad is spec'd to the full load. If you are still deciding between this and a smaller vessel, run your demand through the Tank Sizing Calculator and review the Tank Sizing Guide before you commit to a tank this size.
The mistake to avoid
The common error on a vertical HDPE tank this large is treating it like a smaller tank you can shim or set on uneven ground. At 188 inches tall and tens of thousands of pounds when full, any gap or soft spot under the base concentrates stress and works against the tank wall. The thinnest, most fatigue-prone section is up at the vapor-saturated headspace, where premature failures actually originate - not down on the liquid side where most operators look. Our guide on HDPE tank wall thickness at the vapor-saturated headspace walks through why liquid-side inspection misses these and how the sizing logic works. For full dimensions, see the technical drawing on this page. Fitting sizes, bulkhead outlets, and gasket kits for a tank this size are confirmed per order - call 866-418-1777 to spec the outlet and gasket configuration before you purchase.
Common applications
At 8,400 gallons this Norwesco vertical tank is a natural fit for rural and remote fire-water reservoirs, agricultural and irrigation supply, bulk potable and non-potable water storage, and rainwater collection where a large vertical HDPE tank makes sense. If you are spec'ing a private fire-protection reservoir, our fire-water reservoir tank design guide covers NFPA 22 sizing discipline and cold-climate freeze protection for this class of vertical storage tank. For a complete walkthrough of this exact size, see our 8,400 gallon vertical storage tank buyer's guide.
This tank ships LTL freight from a single Norwesco ship point in Hanford, CA, quoted live to your ZIP. Because it ships from one West-Coast origin and is an oversize, near-10-foot vessel, Midwest and Eastern buyers should pre-frame the freight number rather than wait for checkout - get an exact figure in seconds with our Freight Cost Estimator, or call 866-418-1777 and we will walk you through delivery, offload, and siting for a tank this size. Listed price is before freight.
