The Snyder Industries 7900 Gallon Vertical Storage Tank is a black crosslinked polyethylene (XLPE) tank built to ASTM standards for heavy-duty bulk water and liquid storage. It stands 177 inches tall on a 120 x 120 inch footprint, holds a rated 7,900 gallons, and carries a 1.9 specific gravity rating - the tank wall is engineered for liquids heavier than water, so you get real headroom on this vertical storage tank rather than a spec you have to design around.
Will it work for your site?
Start with the weights, because at this size they drive everything. Filled with plain water the contents alone run 65,886 lb, and the 1.9 SG rating allows a maximum contents load of 125,183 lb before you reach the tank's design limit. Those numbers decide your pad, not a guess - a slab under a tank this heavy is a structural element, and our concrete pad sizing guide walks through the ACI framework for above-ground poly tanks. Two dimensions to confirm before delivery: the footprint is 120" x 120", and the overall height is 177" - at 14 feet 9 inches tall this tank clears no standard building door or awning, so check overhead and access clearance on your route and set-down. To confirm the 7,900 gallon size fits your actual draw and refill cycle, run the Tank Sizing Calculator or read the Tank Sizing Guide before you commit.
Fittings and access
Per the technical drawing on this page, this tank is configured with a flange, an 18" polyethylene threaded and vented fitting, and a manway with 15" access. The 15" figure is the usable opening - enough for interior inspection, cleaning, and arm access, not full-body entry - so plan your interior maintenance around that clear diameter. The 18" threaded fitting is vented, and on a tank this size that vent path is a safety item: keep it unobstructed during fast fill and draw so you never pull pressure or vacuum on the wall. Confirm your inlet, outlet, and vent plumbing against the drawing dimensions before finalizing your layout, since fitting placement on a 177-inch-tall vertical tank affects how you route lines and where you set your pad. For the flange connection, verify gasket and bolt-up hardware against the drawing before you plumb it.
XLPE and the mistake to avoid
The crosslinked (XLPE) resin here is not the same as standard HDPE, and the difference matters if this tank will ever see anything other than water. Crosslinking builds environmental stress-crack resistance and toughness that a linear polyethylene wall does not have - see Snyder XLPE vs HDPE for where that distinction earns its keep. If your application is a fire-water reservoir or emergency storage, the rural fire-water reservoir design guide covers NFPA 22 sizing and freeze protection for cold-climate sites. The common mistake at this scale is undersizing the foundation to the water weight instead of the full 1.9 SG rated load - build the pad to the tank's limit, not to today's fill.
This black XLPE storage tank ships LTL freight from the Snyder plant in Lincoln, NE, quoted live to your ZIP. Get a freight quote with the Freight Cost Estimator, or call 866-418-1777 and we'll quote the freight and confirm fitting and flange-gasket configuration before your order ships.
