The Snyder Industries 5500 Gallon ASTM XLPE Black Vertical Storage Tank is a crosslinked linear polyethylene (XLPE) vessel built for high-demand bulk water and heavy-liquid storage. It carries a 1.5 specific gravity rating, meaning the wall is engineered to hold contents up to 1.5 times the weight of water, a meaningful margin over a standard 1.0-rated water tank. It stands 221 inches tall, over 18 feet, on a 90-inch (7.5 ft) diameter, so it belongs on a properly sized, level pad rated for the full load rather than a quick gravel bed.
Will this tank work for your site?
Nominal capacity is 5,500 gallons in black XLPE, which blocks light to slow algae growth in outdoor water service. The numbers that drive your foundation and rigging plan: filled with water this tank weighs roughly 45,870 lb, and loaded to its full 1.5 SG rating it can reach about 68,805 lb. Size those figures into your pad and anchoring before delivery, and run the volume through the Tank Sizing Calculator and the Tank Sizing Guide if you are still fixing the number. The technical drawing on this page shows the fitting layout, which includes a flange, an 18-inch PE threaded/vented fitting, a manway with a 15-inch access opening, a fitting flat at 272.5 degrees, and a S.U.M.O./FTG connection. Because the tank stands over 18 feet tall, the top manway and top fittings sit roughly 18 feet up, so plan a platform or ladder cage for fill, vent plumbing, and inspection access.
Fittings and seal material
Confirm your inlet, outlet, and vent plumbing against those callouts before you finalize the install. Just as important, when you specify the flange, the 18-inch PE threaded/vented fitting, the S.U.M.O./FTG connection, and the 15-inch-access manway, confirm the gasket and bulkhead-fitting elastomer, EPDM versus Viton for example, are compatible with the stored liquid. The XLPE wall's 1.5 SG margin means nothing if the seal at a fitting fails first.
Sizing, pad, and foundation
Because this is a tall vertical storage tank carrying tens of thousands of pounds when full, the concrete pad and any seismic or wind anchoring matter as much as the tank itself. A 90-inch diameter tank is a 7.5-foot circle, so pour a pad at least 90 inches square and level. Our guide on concrete pad sizing for above-ground polyethylene tanks walks the ACI 360R-10 framework and where the ACI 318 boundary comes in. For fire-protection reservoirs, our fire-water reservoir design guide covers NFPA 22 sizing discipline and freeze protection for cold-climate service.
The mistake to avoid
Do not treat the 1.5 SG rating as an invitation to skip freeboard math or to store a denser liquid without re-checking wall and fitting suitability. If you are storing a liquid denser than water, or one that expands, confirm the real usable volume before you order. Our write-up on freeboard sizing per ASTM D1998 shows why density and thermal expansion cut into the number you can actually use. The second common miss is underbuilding the pad for the 68,805 lb worst case rather than the water-only weight. For grey-water, rainwater, or condensate aggregation projects, see our industrial water reuse tank topology guide.
This tank ships LTL freight from the Snyder plant in Lincoln, Nebraska, quoted live to your ZIP based on distance and delivery conditions. Get your number from the Freight Cost Estimator or call 866-418-1777 and our team will size the tank, the pad, and the delivery together.
