The Snyder Industries 16500 gallon vertical storage tank is a black polyethylene bulk-storage tank rated to 1.5 specific gravity, standing 257 inches tall on a 142 x 142 inch footprint. It carries an ASTM build designation and is sized for large-volume water and process-water storage where a single tank replaces a bank of smaller ones. If you are searching for a black vertical storage tank at true bulk scale, this Snyder tank delivers the single-tank capacity that ends the multi-tank shuffle.
Will this tank work for your site?
At 16,500 gallons, a full load of water weighs roughly 137,610 pounds, and at the tank's full 1.5 specific gravity rating the maximum rated contents weight climbs to about 206,415 pounds. Those two numbers are different for a reason: the offload equipment only has to move the empty tank on delivery, but the pad underneath has to carry the full 206,415-pound loaded figure for the life of the installation. Spec your crane or forklift off the empty weight and your concrete off the loaded weight. This size tank demands a properly engineered, level concrete pad, so use the Tank Sizing Calculator and Tank Sizing Guide to confirm the volume you need, and read our guide to concrete pad sizing for above-ground polyethylene tanks before you pour.
At nearly 21.5 feet tall on an 11.8 x 11.8 foot footprint, confirm your overhead clearance and offload reach before delivery day, not after the truck arrives. The tank is fitted for real plumbing and access. Per the technical drawing on this page, it includes a flange fitting, a 12" x 26" fitting, an 18" polyethylene threaded and vented fitting, a flat fitting, and a manway with 15" access. The 18" threaded/vented fitting carries your vent path, while the flange and 12" x 26" openings are the large inlet and outlet points. The 15" manway is a clear inspection and cleaning access for a hand and tools, not a full body-entry hatch, so plan your interior maintenance around it. Match your bolt-on flange gaskets and threaded-fitting seals to the 18" threaded and 12" x 26" openings shown on the drawing before you plumb it.
The 1.5 specific gravity rating
The 1.5 SG rating is the number to plan around. It means the tank wall is built to hold contents up to 1.5 times the density of water, which is why the maximum rated contents weight runs so far above a plain water fill. For plain water storage you have generous margin. The common mistake on a bulk tank this large is undersizing the pad or the site prep against the empty tank rather than the loaded weight, so size everything to the loaded numbers above.
Freight
This is a large LTL freight item. It ships from Snyder's plant in Lincoln, NE, with freight quoted live to your ZIP code. Get a number in seconds with our Freight Cost Estimator, or call 866-418-1777 and we will quote the delivery for you. A tank of this footprint and height needs a suitable offload plan and equipment on site, so talk to us before you order if you are unsure about access. For fire-reserve and reuse projects at this scale, our fire-water reservoir design guide and industrial water reuse topology guide walk through where a tank this size fits.
