The Snyder Industries 4600 Gallon ASTM Black Heavy Duty vertical storage tank is a full-size bulk water reservoir built for demanding above-ground storage. Molded in black polyethylene to ASTM standards, it carries a 1.9 specific gravity rating, stands 116 inches tall, and sits on a 120 x 120 inch footprint. If you are searching for a heavy-duty black vertical storage tank with real capacity behind it, this Snyder tank holds 4,600 gallons in a single upright vessel.
Will it work for your site?
Full of plain water, this tank reaches roughly 38,364 pounds, so the pad and soil beneath it must carry that load plus the tank itself. Where this SKU separates from a standard water tank is the 1.9 specific gravity rating: the wall is engineered to hold the same 4,600 gallons of contents up to 1.9 SG, which is why the maximum rated contents weight lands near 72,892 pounds (38,364 pounds of water times the 1.9 rating). That is the high-gravity tier, so denser brines and slurries that would overload a lighter vertical tank stay within this one's rated envelope. Because usable volume shrinks with fluid density and thermal expansion, size to real gallons rather than the 4,600 nameplate. Run your draw-down and refill numbers through our Tank Sizing Calculator, review the Tank Sizing Guide, and for high-SG Snyder builds see the guide on freeboard sizing per ASTM D1998. For the foundation, our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework.
Fittings and access
This tank is configured with a flange fitting, an 18-inch PE threaded and vented lid, and a manway with 15-inch access, as shown on the technical drawing on this page. The vented lid matters at this size: as thousands of gallons move in and out, air has to flow freely or the vessel can pull a vacuum on drain-down. One caution — the tank wall rating does not extend to gasket material, so confirm the flange gasket and any bulkhead or outlet gaskets are elastomer-rated for the actual stored fluid, since a 1.9 SG tank is often specified for chemistry rather than plain water. Confirm fitting locations and elevations against the drawing before you plumb inlet, outlet, and overflow. For a fire-protection reservoir role, our guide on fire-water reservoir tank design covers NFPA 22 sizing and freeze protection, and for grey-water, rainwater, and HVAC-condensate collection see our industrial water reuse topology guide.
The mistake to avoid
The most common error on a tank this large is underbuilding the foundation. At nearly 38,000 pounds full of water, this Snyder vessel needs a continuous, level, fully supporting pad — not piers or a partial ring. An unsupported or uneven base concentrates stress on the tank floor and shortens its life. Size the pad to the full 120-inch square footprint and keep it level within manufacturer tolerance.
This Snyder 4600 gallon vertical storage tank ships LTL freight from the Chowchilla, CA plant, quoted live to your ZIP code. At 116 inches tall on a 120 x 120 inch base, plan for overhead clearance and offloading access at delivery. Get a freight quote to your ZIP in seconds with our Freight Cost Estimator, or call 866-418-1777 to talk through access, offloading, and lead time with our team.
