The Snyder Industries 6200 Gallon HDPE Vertical Liquid Storage Tank is a Marked Tree, Arkansas-built bulk water vessel rated to 1.5 specific gravity, which means its wall thickness is engineered well beyond the demands of plain water and gives you real headroom for heavier service down the road. It stands 140 inches tall on a 120-inch diameter (120 x 120 inch footprint), holds 6200 gallons, and arrives molded in white HDPE. If you are sizing a fresh-water reservoir, an irrigation buffer, or a fire-protection supply, this is the kind of vertical storage tank that anchors the whole system.
Does it work for your site?
Start with the loaded weight, because that drives everything underneath the tank. Filled with water, this vessel carries 51,708 pounds; at its full 1.5 SG rating it can reach 77,562 pounds of contents. Standing 140 inches tall on a 120-inch diameter base, it puts that mass on a 120 x 120 inch footprint, so your pad and soil-bearing plan have to be built for the loaded weight, not for the empty shell. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm the 6200-gallon size matches your draw-down and refill cycle, and read our concrete pad sizing guide for the ACI 360R-10 framework that governs above-ground polyethylene tank pads. Because a full-height tank in this weight class is freight-dominated, it is worth running your address through the Freight Cost Estimator early to confirm delivery access and liftgate needs before you commit.
Fittings and access
The factory configuration shows a flange and a flat fitting-pad pattern (8 places at 45 degrees typical), with service access through an 18-inch PE threaded manway at the top. The important detail for compatibility: the flat pads ship un-drilled, so they are blank locations where you add bulkhead fittings and gaskets to suit your plumbing layout, and the manway is the only finished penetration shown. For exact fitting elevations and the flat-pad geometry, see the technical drawing on this page before you finalize your tie-ins. This is a heavy, full-height vertical tank, so plan rigging and a level base accordingly.
Why the 1.5 SG rating matters
The most common mistake on a tank this size is treating the specific-gravity rating as a throwaway spec. The 1.5 SG rating is what buys the extra wall: where plain water loads the shell to 51,708 pounds, the rated contents weight reaches 77,562 pounds, roughly 25,800 pounds and about 50 percent more capacity in the wall to carry denser liquids and resist long-term fatigue. That headroom is real, but it changes your pad math, so size the foundation to the rated number. If you ever want to understand where HDPE walls actually thin and fail over time, our guide on HDPE tank wall thickness at the vapor-saturated headspace walks through the ASTM D1998 sizing logic operators should know, and the Snyder Captor double-wall freeboard sizing guide covers the freeboard and containment math if your service moves beyond plain water. Planning a rural fire-water reservoir? Our fire-water reservoir design guide covers NFPA 22 sizing discipline for this class of polyethylene storage tank.
This tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, with the rate quoted live to your ZIP code. Run your address through the Freight Cost Estimator for a freight quote to your ZIP, or call us at 866-418-1777 and we will price the haul and confirm the configuration before you order.
