The Snyder Industries 8500 Gallon HDPE Vertical Liquid Storage Tank is a large-format white polyethylene vertical storage tank rated to a 1.5 specific gravity, built and shipped from Snyder's Lincoln, Nebraska plant and carrying ASTM certification. At 194 inches tall on a 120-inch by 120-inch footprint, it holds 8,500 gallons of water or compatible liquid, and the 1.5 SG rating is what lets you run heavier-than-water contents up to a maximum rated weight of 106,335 pounds without exceeding the wall design. If you have searched for an HDPE vertical storage tank in this class, this is the Snyder vertical tank that fits the job.
Will it work for your install
This vertical storage tank stands 194 inches tall over a 120 x 120 inch footprint, so plan your pad and overhead clearance around those numbers before delivery. Full of water it weighs roughly 70,890 pounds, and at its full 1.5 specific gravity rating it carries up to 106,335 pounds of contents. The technical drawing on this page shows the fitting layout: a flange, an 18-inch PE threaded/vented fitting, and a 12-inch by 24-inch fitting. That 18-inch vented fitting is not just an opening - on an 8,500-gallon tank, the vent has to flow enough air to match your fill and draw rate, or you pull a vacuum on drawdown and risk deforming the tank. Size gaskets, bulkhead fittings, and adapters to those specific connections, and select them before you order, because field-modifying a tank this size is not practical. See the technical drawing on this page for exact fitting locations and clearances.
Sizing the pad and the foundation
At more than 53 tons fully loaded under water and over 106,000 pounds at the rated 1.5 SG, the foundation is not an afterthought. The 120 x 120 inch footprint is 100 square feet, so at the rated 106,335 pounds your slab carries roughly 1,063 pounds per square foot - use that bearing figure when you spec and pour the pad. Our Tank Sizing Calculator and Tank Sizing Guide help you confirm this 8,500-gallon capacity matches your draw and refill cycle, and the engineering behind a slab this size is covered in our guide on concrete pad sizing for above-ground polyethylene tanks within the ACI 360R-10 framework. Because the 1.5 SG rating governs wall thickness, the discussion of HDPE tank wall thickness and ASTM D1998 sizing logic - the same ASTM D1998 standard behind this tank's certification - is worth reading before you put a tank this size into service. For fire-water reservoir duty, our fire-water reservoir design guide walks through NFPA 22 sizing.
The headroom you are buying, and the mistake to avoid
Water needs only about a 1.0 specific gravity rating, but this tank is rated to 1.5 - roughly 50 percent of weight headroom above its 70,890-pound full-water load up to the 106,335-pound rated maximum. That means you can buy once for water now and run heavier compatible chemistry later without re-sizing the tank. The common error at this size is treating the 1.5 rating as a license to skip the pad math: the rating tells you the wall can hold the load, but your foundation still has to carry up to 106,335 pounds at the rated SG. Pour and cure a level, full-footprint slab sized for the loaded weight, and verify your fittings match the flange, 18-inch PE threaded/vented fitting, and 12 x 24 inch opening on the drawing before delivery.
This tank ships LTL freight from Snyder's plant in Lincoln, Nebraska, quoted live to your ZIP code - get your number from the Freight Cost Estimator or call 866-418-1777. A tank this size moves on a dedicated trailer, so confirm site access, unloading equipment, and that the 194-inch height clears as a standard load when you book.
