The Norwesco 15,000-gallon vertical fertilizer storage tank is built for bulk liquid agricultural inputs, and the single number that decides whether it fits your application is its 1.9 specific gravity rating. That rating is why this tank exists: liquid fertilizers are far heavier than water, and a 15,000-gallon volume of them puts enormous load on the tank wall. This Norwesco vertical storage tank is rated to carry it.
Will it hold your fertilizer?
This is a polyethylene vertical tank, 15,000 gallons, in yellow, standing 186 inches (15.5 feet) tall on a 165 x 165 inch footprint (13.75 feet square). Plan your pad and your fill height around those dimensions. The capacity math is where buyers get caught: filled with plain water, the contents alone weigh 125,100 lb. Filled to the tank's maximum rated contents weight at 1.9 specific gravity, you're at 237,690 lb of liquid. That 1.9 SG headroom is what lets you store dense liquid fertilizer rather than only water. Confirm the specific gravity of your exact product against that 1.9 rating before you fill, and never exceed it. Use the Tank Sizing Calculator and the Tank Sizing Guide to match this vertical storage tank to your draw-down and refill schedule.
Confirm fittings before you order
Fitting, outlet, and lid configuration for this vertical tank are shown on the technical drawing on this page. On a 15,000-gallon bulk tank, the bulkhead fitting and gasket sizing have to match your fill, outlet, and vent plumbing, so confirm that schedule against your piping before you commit. If you need the fitting layout verified for your install, call us at 866-418-1777 and we'll walk it with you against the drawing.
The pad is the project
A tank this size lives or dies on its foundation. With more than 237,000 lb of fully loaded contents bearing on a 165-inch square footprint, the concrete pad under this tank is the real engineering work, not the tank itself. Get the pad sized, level, and full-contact under the entire base before this tank ever sees liquid. Our guide on concrete pad sizing for above-ground polyethylene tanks walks the ACI 360R-10 framework and where the ACI 318 boundary sits. A vertical poly tank this size also serves as a private fire-water reservoir; if that's your use, see our guide on fire-water reservoir tank design and NFPA 22 sizing. Review the technical drawing on this page for the base dimension and overall height before you pour.
Freight on a 15,000-gallon tank
A vertical tank this large ships LTL on its own, and the freight is a real line item you'll want quoted before you commit. We ship from the Norwesco plant nearest you, drawing from Albertville, AL; Fairfield, TX; St. Bonifacius, MN; and Washington Court House, OH. Shipping from the closest of those four to your delivery point is what keeps the freight reasonable on a unit this size. Run your ZIP through the Freight Cost Estimator for a live LTL quote, or call us at 866-418-1777 and we'll work the freight and the delivery logistics with you. Whether you're standing up a single bulk vertical storage tank or a full fertilizer storage train, we'll get you the right Norwesco tank to the right pad.
