The Snyder Industries 4100 Gallon Vertical Storage Tank is a black crosslinked linear polyethylene (XLPE) tank rated to 1.9 specific gravity, standing 130 inches tall on a 102 x 102 inch footprint. Because the width and length match, the base is a true square footprint that sizes cleanly to a pad, while the tall, relatively narrow 130-inch profile is worth planning for when you set anchoring and layout. For anyone sizing a large above-ground vertical storage tank for water, this heavy-duty XLPE build carries a wide margin over plain water duty, and the numbers below tell you exactly whether it fits your pad, your fill, and your fittings.
Will it work for your site?
At 4,100 gallons, a full load of water weighs 34,194 lb, so the pad and soil under this tank carry roughly 17 tons before you account for the tank itself. Set that against the 64,969 lb maximum rated contents weight and you can see the roughly 1.9x headroom at a glance: the 1.9 specific gravity rating means the wall is engineered to hold contents far denser than water. That headroom is why Snyder builds this unit in crosslinked polyethylene rather than standard linear polyethylene for a tank this large and this tall. Because the loaded weight is substantial, the pad has to be flat, level, and fully supporting the entire 102 x 102 inch base. If you are still confirming footprint and fill volume, run the numbers through our Tank Sizing Calculator and cross-check the approach in the Tank Sizing Guide; for above-ground pad design on a tank this heavy, our concrete pad sizing guide walks through the ACI 360R-10 framework. A 4,100-gallon black vertical is also a common rural fire-water reservoir, and if that is your use case, the fire-water reservoir design guide covers NFPA 22 sizing discipline.
Fittings and access
This vertical tank comes configured with a top-mount flange, an 18-inch PE threaded and vented lid, and a manway with 15-inch access for interior inspection and cleaning. The drawing also documents a 12 x 23 inch fitting and a flat fitting location. Confirm the exact fitting sizes, elevations, and outlet positions against the technical drawing on this page before you plumb the tank or pour a pad with penetrations, since the vented lid and manway placement drive how you fill, vent, and service the unit. Match your plumbing to what the tank provides: verify the gasket material and thread type on the flange and the PE threaded fitting against your piping, and plan a gasketed bulkhead or flange connection at the outlet so the seal is right the first time. If you are weighing this crosslinked build against a standard linear tank, our guide on Snyder XLPE vs HDPE explains when crosslinking earns its place.
Common mistake to avoid
The biggest error on a tank this size is treating the specific gravity rating as optional. The 1.9 rating is a wall-design ceiling for contents density, not a suggestion. As long as your stored liquid stays at or below that density, this tank is already over-built for water and most chemistry duty, which is why there is no denser build to reach for here; the number to respect is the 34,194 lb full-water weight when you spec the foundation. The second mistake is under-building the pad. On a 130-inch-tall vertical tank, an uneven or undersized base concentrates load and stresses the lower wall. Get the pad right before delivery, not after.
This tank ships LTL freight from the Snyder plant in Philippi, West Virginia, quoted live to your ZIP. Get a real number with our Freight Cost Estimator, or call 866-418-1777 and we will size the vertical storage tank, confirm the XLPE build and fitting layout, and set up delivery. One Source Plastics, 866-418-1777.
