The Snyder Industries 4100 Gallon ASTM Black Heavy Duty Vertical Storage Tank is a full-size polyethylene vertical storage tank built for bulk water storage. Molded in black to block light and slow algae growth, it carries a 1.9 specific gravity rating - meaning the wall is rated for liquids up to 1.9 times the density of water, with a maximum rated contents weight of about 64,969 pounds. It gives you 4,100 gallons of usable volume on a single ground pad.
Will this tank work for your site?
Start with weight, because it drives everything downstream. Filled with plain water, this tank and its contents run about 34,194 pounds. Its listed footprint is 120 by 120 inches - confirm the exact height and diameter against the technical drawing on this page before you form your slab, since drawing dimensions are the verified numbers. That load and footprint demand a properly sized, level concrete pad. Our concrete pad sizing guide walks the ACI 360R-10 framework for above-ground poly tanks, and the Tank Sizing Calculator and Tank Sizing Guide help you confirm 4,100 gallons matches your draw and refill cycle before you pour.
Fittings and access
Per the technical drawing on this page, the tank includes an 18-inch PE threaded manway for interior access, cleaning, and inspection, a molded flange fitting, and eight flat fitting pads placed at 45-degree intervals so you can position outlets and bulkhead connections where your plumbing needs them. The threaded manway seals by its molded PE thread and needs no add-on gasket. The flat pads are pre-positioned mounting points, not pre-cut penetrations - any bulkhead fitting you install there needs an appropriate gasket and seal sized to the penetration. Confirm your fitting locations and sizes against the drawing before finalizing site plumbing. As a heavy-duty vertical storage tank, this is a common choice for rural fire-water reservoirs and reuse trains; if fire protection is your use case, the NFPA 22 fire-water reservoir design guide covers sizing discipline and freeze protection, and the industrial water reuse topology guide covers grey-water and rainwater aggregation.
The mistake to avoid
Do not size your pad off the water weight alone. This tank is rated to 1.9 SG, and a denser liquid can push the load from the ~34,000 pound water figure to the ~64,969 pound maximum. Engineer the slab for the heaviest liquid you might ever put in it. Confirm the tank's full height against the drawing when you plan fill-line access and overhead clearance.
This vertical storage tank ships LTL from Snyder's plant in Marked Tree, Arkansas, and freight is quoted live to your ZIP - get an instant number from our Freight Cost Estimator or call 866-418-1777. Because a 4,100-gallon tank travels as a dedicated LTL load, a delivery ZIP with easy truck access keeps your freight cost down.
