The Snyder Industries 5600 Gallon ASTM Black Vertical Storage Tank is a large-format polyethylene vertical storage tank built for bulk water and high-density liquid service. It stands 102 inches tall on a 142 x 142 inch square footprint, holds 5,600 gallons, and carries a 1.5 specific gravity rating — meaning it is engineered to hold contents up to 1.5 times the weight of water. Molded in black polyethylene, it is a straightforward, heavy-duty vertical tank for anyone who needs serious on-site storage capacity.
Will it work for your site?
Run the numbers before you pour a pad. Filled with water, this tank weighs about 46,704 lb; loaded to its maximum rated contents at the 1.5 SG limit, it reaches roughly 70,056 lb. That load rides entirely on the 142 x 142 inch base, so your foundation has to be sized for it — use our Tank Sizing Calculator and the Tank Sizing Guide to confirm capacity and layout, and review concrete pad sizing for above-ground polyethylene tanks so the slab carries the full-rated weight.
Fittings and connections
The tank comes with a flange, an 18-inch PE threaded and vented fitting, and a manway with a 15-inch access opening. Treat those as mating surfaces you spec against: the flange and the 18-inch PE threaded/vented port each need a matching gasket and adapter sized to that connection before you plumb the tank. It also has molded fitting flats at 171.5° and 261.5° — these are blank landing pads, not pre-cut outlets, so plan on field-installing any bottom draw or side fitting there with its own gasket and bulkhead. See the technical drawing on this page for exact fitting locations and elevations before you drill or plumb anything.
Common applications and the mistake to avoid
At 5,600 gallons this is a workhorse for bulk water storage, rural and remote reservoirs, and reserve supply. If you are sizing it for private fire protection, our guide to fire-water reservoir tank design and NFPA 22 sizing covers reserve-volume discipline and freeze protection; for grey-water, rainwater, or HVAC condensate aggregation, see our breakdown of industrial water reuse tank topology. The number that trips people up is the 1.5 SG rating: it means the tank walls are built for contents up to 1.5 times water's weight, but it does not license an undersized foundation or plumbing. Match your pad and anchoring to the full 70,056 lb figure, not the water-only weight, and confirm your contents fall at or below 1.5 SG before you fill. If density and freeboard are a question for your fill, freeboard sizing per ASTM D1998 explains how specific gravity and thermal expansion change the volume you can actually use.
This tank ships LTL from the Snyder plant in Philippi, West Virginia, and freight is quoted live to your ZIP — get a number in seconds with our Freight Cost Estimator. A unit this size needs offloading equipment on site, so call 866-418-1777 first to talk through delivery, offloading, and pad requirements before you order.
