The Snyder Industries 8750 Gallon ASTM Black Heavy Duty Vertical Storage Tank is a large-volume vertical storage tank molded from high density linear polyethylene for bulk water and liquid storage. It holds 8,750 gallons, stands 146 inches tall, and sits on a 142 x 142 inch footprint, so plan your pad and site clearances around those dimensions before you order. The black exterior blocks light to help limit algae growth in outdoor water service, and the tank carries a 1.9 specific gravity rating, giving it substantial structural headroom above the density of plain water.
Will this vertical tank work for your site?
Water fills this tank to roughly 72,975 pounds at capacity, so the foundation has to be engineered for that load. Because the shell is rated to 1.9 specific gravity, the maximum rated contents weight climbs to about 138,652 pounds when it holds a heavier liquid at full volume. That 1.9 rating is a structural allowance for liquid density up to 1.9 — it does not by itself certify chemical compatibility, so confirm resin and gasket suitability for your specific liquid before storing anything other than water. For loaded weight and freeboard math, run your numbers through our Tank Sizing Calculator and review the Tank Sizing Guide before you commit to a size. If you are placing this above ground on a poured slab, our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework for supporting a vertical tank this heavy.
Fittings, venting, and access
The technical drawing on this page details the fitting layout, which includes a flange, a flat fitting at 2.5 degrees, an 18-inch PE threaded and vented fitting, a flat fitting at 92.5 degrees, a S.U.M.O. style fitting, and a bulkhead fitting. Access is through a manway with a 15-inch access opening. On a tank that fills and drains at 8,750 gallons, size the vented fitting to your maximum fill and discharge rate so the tank breathes properly during transfer. Bulkhead and flange connections also need the correct gaskets and O-rings matched to the liquid you store, and those are not necessarily included — verify each fitting position, size, and gasket against the drawing and your plumbing plan before installation, since outlet and vent placement drive your inlet and discharge routing on a tank of this height.
Freight and how to order
This is a large vertical storage tank that ships by LTL freight from the Snyder plant in Lincoln, Nebraska, and freight is quoted live to your ZIP rather than included in the list price. Use our Freight Cost Estimator for a delivered freight quote, or call 866-418-1777 to confirm access requirements for delivering a black vertical storage tank of this size to your site. If this tank is part of a fire-water reservoir or rural water reserve, our guide on fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing and freeze protection for water storage at this scale.
