The Norwesco 10500 Gallon HDPE Vertical Liquid Storage Tank (N-47640) is one of the largest single-tank polyethylene vessels available for bulk water and liquid storage. Molded from polyethylene at 130 inches in diameter and standing 202 inches tall, it holds 10,500 gallons in a single 130-inch footprint and carries a 1.9 specific gravity rating - the wall is built to hold contents up to 1.9 times the density of water.
What the 1.9 SG rating buys you
For straight water service (SG 1.0), the 1.9 rating leaves a wide structural margin - exactly what you want on a vessel this size. That same rating is also a capability: this wall is engineered to carry contents up to 1.9 specific gravity, so the tank can hold heavier liquids without re-speccing to a different vessel. The numbers behind the margin: full of water the tank weighs about 87,570 lb, while the wall is rated to carry contents up to 166,383 lb. If your service liquid is denser than water, confirm its specific gravity against the 1.9 rating before you order - and call us at 866-418-1777 if you want a second set of eyes on the match.
Will this tank work for your site?
That 87,570 lb full-water load over a 130-inch-diameter footprint drives the foundation design - a tank this large should sit on a properly engineered, full-diameter concrete pad, not bare or partially supported ground. Walk through the load and footprint with our Tank Sizing Calculator and Tank Sizing Guide before you commit, and use the concrete pad sizing guide built around the ACI 360R-10 framework to spec the slab correctly. Exact dimensions and fitting placements are shown on the technical drawing on this page - confirm fitting sizes, locations, and the gaskets you will need against that drawing before you finalize plumbing.
The mistake to avoid on a tank this size
With a 10,500-gallon Norwesco vertical tank, the failures that catch operators are rarely on the liquid side - they start in the vapor-saturated headspace at the top of the wall, where condensation and stress concentrate. Our guide on HDPE tank wall thickness at the vapor-saturated headspace walks through why liquid-side inspection misses these and how the ASTM D1998 sizing logic applies. If you are using this tank for rural fire reservoir or remote-site water supply, the fire-water reservoir design guide covers NFPA 22 sizing and freeze protection for cold-climate service. For the full picture on this specific size, see our 10500 gallon vertical liquid storage tank buyer's guide.
Freight on a 10500 gallon tank
A tank this size ships LTL on its own, and freight is quoted live to your ZIP rather than bundled into the list price. This Norwesco vertical storage tank ships from the Albertville, Alabama plant, so your freight cost depends on the haul from Alabama to your site. Get an exact number before you order with our Freight Cost Estimator, or call 866-418-1777 and we will pull a live LTL quote and help you confirm slab readiness, access, and offload for a tank of this scale.
