The Snyder Industries 7900 Gallon ASTM Black Vertical Storage Tank (SKU 7370000N49) holds 7,900 gallons inside a 120-inch diameter footprint standing 177 inches tall. It is molded in black polyethylene and carries a 1.5 specific gravity rating, so the wall is rated for the weight of a full column of water at this height. If you are sizing bulk water, fire reserve, or process holding storage, this is a vertical storage tank chosen on footprint and column height, not on trimming a few gallons. For reuse-fed process holding, our water reuse tank topology guide covers where a tank this size fits in a quality-banded storage train.
Will it work for your site?
Plan the pad and the load first. Filled with water, this tank weighs roughly 65,886 lb, and at its maximum rated contents it carries up to 98,829 lb. That roughly 32,900 lb gap between the water weight and the max-rated weight is exactly why the 1.5 SG rating exists and why the pad has to be engineered to the 98,829 lb figure, not the water figure. All of that load rides on a 120.0 x 120.0 inch footprint, so the concrete pad and subgrade have to be built for a concentrated load, not set on gravel. Our concrete pad sizing guide walks through the ACI 360R-10 framework for exactly this kind of above-ground poly tank. To match the tank to your draw-down and refill cycle, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide before you commit.
Fittings and access
Per the technical drawing on this page, this tank is configured with a flange fitting, an 18-inch polyethylene threaded and vented top opening, and a manway with 15-inch access. On a 177-inch-tall tank, that 15-inch manway is your interior entry point for inspection, cleaning, and reseating the top openings, so it earns its place in the layout. Confirm the fitting locations and elevations against the drawing before you set your inlet and outlet plumbing, since the vented top detail matters on a tank filling and drawing at this volume. If this feeds a rural fire-water reservoir, our fire-water reservoir design guide covers NFPA 22 sizing and freeze protection for cold-climate service.
Freight and the mistake to avoid
The most common mistake on a tank this size is treating the 1.5 specific gravity rating as a license to store anything. This is a black polyethylene water storage tank; the 1.5 SG rating describes the weight of liquid the wall is built for, not chemical compatibility. Keep it in water and dilute aqueous service unless you have verified your specific liquid against both the polyethylene resin and the seal materials at the flange and vented threaded opening, since a fluid the resin tolerates can still attack a gasket at those penetrations. Because it is filled through a vented top, do not seal the vent or pressurize the tank. If your contents run heavier than water, confirm the required SG rating with us before ordering rather than assuming this tank covers it.
This tank ships LTL freight from the Snyder plant in Lincoln, NE, quoted live to your ZIP code. Get a real number with our Freight Cost Estimator or call us at 866-418-1777 and we will quote the delivery to your site.
