The Snyder Industries 3900 Gallon HDPE Vertical Liquid Storage Tank is a Lincoln, Nebraska-built polyethylene storage tank rated to a 1.9 specific gravity, which is what separates it from a standard water-only vertical tank. At 163 inches tall on a 90 x 90 inch footprint, it holds 3,900 gallons in a single white HDPE shell and carries ASTM certification. The 1.9 SG rating means the wall is sized for liquids substantially heavier than water, so if you are storing brine, liquid fertilizer, or another dense liquid, this is the rating you need rather than a water-only tank that would be under-spec for the load.
Will this tank work for your application
Filled with water, this tank carries roughly 32,526 pounds of contents. Rated for liquids up to 1.9 specific gravity, it is built for a full contents load of about 61,800 pounds, which is the same constraint expressed as density rather than a separate weight ceiling. That headroom is the entire point of the higher SG rating, so before you size a pad or set a fill height, work from the contents weight that matches your actual liquid, not just the water number. Run the numbers through the Tank Sizing Calculator and the Tank Sizing Guide to confirm the working volume and weight you need before you commit.
Fittings and manway
Per the technical drawing on this page, this vertical storage tank comes configured with the following ports. Match your bulkhead fittings, vent caps, and manway gasket to these actual sizes before you order:
- Flange
- 18" PE threaded and vented fitting
- Manway with 15" access
- 10" x 12" fitting (S.U.M.O.)
- Flat S.U.M.O. fitting
Reference the technical drawing on this page for the exact placement and elevation of each outlet and the manway before you plumb anything, since fitting location drives your inlet, vent, and discharge routing.
Sizing a pad and the mistake to avoid
The footprint is 90.0 x 90.0 inches, and at 163 inches tall this hdpe storage tank is top-heavy when full, so the pad has to be flat, level, and rated for the full contents weight. The most common mistake on a tank this size is pouring a pad for the water weight and then filling with a heavier liquid that the 1.9 SG shell can legally hold but the foundation cannot support. Match your foundation to the liquid you are actually storing. For the engineering behind that, see Concrete Pad Sizing for Above-Ground Polyethylene Tanks, and for how wall thickness is sized across the height of an HDPE tank, see HDPE Tank Wall Thickness and ASTM D1998 Sizing Logic.
Freight
This vertical HDPE storage tank ships LTL freight from the Snyder plant in Lincoln, Nebraska, quoted live to your ZIP. Because a 3,900 gallon tank at 163 inches tall is an oversized freight item, run your delivery address through the Freight Cost Estimator for a real rate, or call us at 866-418-1777 and we will quote it for you and confirm offload requirements at delivery. If you are weighing this Snyder vertical storage tank against other vertical tank sizes, our team can help you land on the right capacity and fitting layout before you order.
