The Snyder Industries 16,500-Gallon HDPE Vertical Liquid Storage Tank is a large-format white polyethylene vertical storage tank built for high-volume water and liquid service, carrying ASTM certification and a 1.4 specific gravity rating. At 257 inches tall on a 142 x 142 inch footprint, this is a capital vessel for bulk water reserve, fire-water reservoir duty, and process supply where a single tank needs to hold a large standing volume.
Will it work for your site?
This is a 16,500-gallon vertical storage tank, 257 inches in height with a 142 x 142 inch footprint. Two weights drive your foundation and rigging plan. Filled with water, the tank and contents weigh about 137,610 lb. At its maximum rated contents, the tank carries 192,654 lb. Those numbers are not interchangeable: the higher figure reflects the 1.4 specific gravity rating, meaning the wall is built to hold a liquid up to roughly 11.66 lb/gal, about 40 percent denser than water. That rating is the value here. A buyer storing a denser liquid, such as brine or process chemistry up to 1.4 SG, gets a vessel rated for it without stepping up to a heavier-wall family. Check your fluid's density against that 11.66 lb/gal figure. If you are storing plain water you are well inside the envelope; if your liquid is denser, size to the rated specific gravity, not to the gallon count. Run your standing volume through the Tank Sizing Calculator and review the Tank Sizing Guide before you commit to a single large vessel versus a multi-tank arrangement.
Foundation, fittings, and installation
A tank this size lives or dies on its pad. The full and rated-contents weights above are the design loads your concrete and soil-bearing have to carry, distributed across the 142 x 142 inch base. Get the pad geometry and the concrete boundary right before delivery, not after. For fire-water reserve applications, NFPA 22 sizing discipline and freeze protection both belong in the plan from the start. Fitting and outlet configuration on a vessel this large is something to confirm directly: see the technical drawing on this page for fitting locations, and call 866-418-1777 to verify outlet, manway, and fill-fitting layout match your plumbing tie-in before you order.
Plan around the ASTM D1998 logic
The single most common mistake on a vertical HDPE tank this large is treating the wall as uniform. ASTM D1998 sizes the wall thickest at the base, where the standing column of liquid is heaviest, and thinnest near the top. The vapor-saturated headspace near the top is where premature wall failures originate and where liquid-side inspection tends to miss them. If this tank will hold anything other than ambient water, confirm the specific gravity of your contents against the 1.4 rating before purchase, and build an inspection routine that includes the upper shell, not just the wetted wall.
Recommended reading
For the engineering behind the build: HDPE tank wall thickness and the ASTM D1998 sizing logic, Snyder Captor freeboard sizing, thermal expansion, and the real volume you can use, concrete pad sizing under the ACI 360R-10 framework, and for reserve-supply duty, fire-water reservoir tank design and NFPA 22 sizing.
This tank ships LTL freight from the Snyder Industries plant in Lincoln, NE, quoted live to your ZIP. Get a freight estimate with the Freight Cost Estimator, or call 866-418-1777 to confirm the empty and shipping weight, lift points, and offload rigging for a vessel this size before you schedule a crane.
