The Norwesco 5000 gallon vertical water storage tank is a polyethylene bulk storage tank built for high-volume water service at a single footprint. This is the Green (California Only) color variant, manufactured at and shipping from Hanford, California, so out-of-state buyers should note the color and origin up front while California buyers benefit from an in-state, intrastate LTL departure. It stands 86 inches tall on a 141-by-141-inch base, holding 5,000 gallons in a low, wide profile that keeps the center of gravity down and the pad load distributed. If you are sizing a vertical storage tank for a ranch, fire reserve, irrigation supply, or a water reuse train, the numbers below are what you build your install around.
Will it work for your site
At 86 inches tall, this is an unusually squat 5,000-gallon tank: it needs a large flat pad, roughly 11.75 by 11.75 feet, but it clears low overhead, which makes it a fit for height-constrained barns, eaves, lofts, and low-clearance sites where a taller vertical storage tank would not stand. The tank is rated for contents with a specific gravity up to 1.0, which is exactly water. At full water weight it carries 41,700 pounds of contents, and that 41,700-pound figure is also the maximum rated contents weight, so plain water fills this tank to its design limit with no margin for heavier liquids. Plan the pad and the plumbing around that full-load number, not the empty shell. Access and venting come through a 22-inch lid (the "tuna can" style top fitting) seated on the revised manway for the 22-inch lid. That 22-inch lid is the standard opening your accessories seat into, so float valves, vents, fill hardware, and screened vents must be gasketed and sized to a 22-inch tuna-can lid rather than guessed. The remaining fitting and outlet locations are shown on the technical drawing on this page, so confirm your outlet height and bulkhead placement against that drawing before you set the tank.
Sizing and the load you are putting on the ground
A 5,000-gallon water tank is a serious dead load. The 41,700-pound full weight drives your pad design, your overflow routing, and whether you need engineered support for the soil you have. The footprint is 141.0 x 141.0 inches, or 11.75 x 11.75 feet, so pour and size the pad to that exact dimension. Run your numbers through the Tank Sizing Calculator and the Tank Sizing Guide to match the tank to your demand, then read our guide on concrete pad sizing for above-ground polyethylene tanks for the ACI framework behind a pad that will actually hold this load over time. Before you put it into service, our hydrostatic test methodology guide walks through the water-fill, pad-settlement, and leak-check sequence for new-install acceptance.
The mistake to avoid
This tank is rated to 1.0 specific gravity, the density of water. That rating is the limit, not a starting point. Do not put any liquid heavier than water in it expecting the same fill height, and do not assume the SG rating gives you headroom for a denser fluid down the road. If your project might shift to a heavier solution, this is not the tank: use the Tank Sizing Calculator and Tank Sizing Guide to find a vertical tank rated for a higher specific gravity instead. The other common miss is the California color and origin: this Green unit is the California-only variant shipping from Hanford, so build your freight and lead-time expectations around a Hanford, CA departure.
This tank ships LTL by motor freight from Hanford, CA, and freight is quoted live to your ZIP rather than included in the listed price. Get your number with the Freight Cost Estimator, or call us at 866-418-1777 and we will quote it for you. For fire-reserve and water-reuse projects, our fire-water reservoir design guide and industrial water reuse tank topology guide show where a 5,000-gallon vertical storage tank fits in the larger system.
