The Norwesco 5000 gallon vertical water storage tank (SKU N-40943) is a black polyethylene vessel measuring 141 inches in diameter and 86 inches tall - a wide, low footprint built for bulk water storage, vertical storage tank duty where capacity and a stable base matter more than height. At 5000 gallons this is one of the larger single-tank options for rural water supply, fire-water reserve, and industrial reuse trains. It ships from Norwesco's Hanford, California plant.
Will it work for your site?
Capacity is 5000 gallons over a 141-inch diameter footprint, so plan your pad accordingly - this tank sits wide and low rather than tall. Full of water, the contents weigh 41,700 pounds, which is also the maximum rated contents weight; that is the number your foundation has to carry, so a properly sized, level concrete or compacted base is not optional at this scale. The polyethylene is rated to a specific gravity of 1.0, meaning it is built for water and liquids no heavier than water - if you need to store anything heavier than water, this is not the rated vessel, so call 866-418-1777 and we will spec a higher-SG tank. The 141-inch diameter also exceeds standard gate and doorway clearance, so check your site-access width before ordering. To match this tank to your draw rate and reserve needs, the Tank Sizing Calculator and Tank Sizing Guide walk through the math.
Lid, manway, and the mistake to avoid
This tank uses a single 22-inch lid (the "tuna can" style) seated on a manway that was revised specifically for that 22-inch opening. That is large enough to enter for inspection and cleaning, but it is also the only top penetration listed - so fill lines, level sensors, and venting all have to route through that one opening; there is no second port in the listed configuration. Because the lid and manway are a matched set, any replacement lid or gasket must match the revised 22-inch manway spec, not a generic or older manway, or it will not seal. There is also no factory bottom or side outlet in the listed fittings, so if you are planning a gravity drain or bulkhead, confirm those positions against the technical drawing on this page before you set the tank - a 41,700-pound full tank is not something you reposition to add a fitting after the fact.
Fire-water and reuse applications
At 5000 gallons this is a common size for private fire-protection reservoirs and for aggregating grey-water, rainwater, and HVAC condensate into a quality-banded reuse train. If that is your use case, our guides on fire-water reservoir design and NFPA 22 sizing discipline and industrial water reuse tank topology cover sizing and freeze-protection. For a full walkthrough of this exact model, see the 5000 gallon (141" x 86") buyer's guide; if you want the same capacity in a taller, narrower form, there is also a 5000 gallon 119" x 112" version.
This tank ships LTL freight from Hanford, California, quoted live to your ZIP code - buyers in the East and Midwest should expect a long-haul rate on this oversize 141-inch-diameter tank, so run the Freight Cost Estimator for an instant quote before you order, or call 866-418-1777 and we will quote it for you.
3 Year Warranty
