The Norwesco 550 gallon vertical water storage tank is a dark green polyethylene tank standing 44 inches tall on a 67-inch-diameter round base. It is built for above-ground bulk water storage where you need a stout, low-profile container that holds a meaningful volume without towering over the pad. At full capacity it holds 550 gallons of water.
Will this tank work for your job?
This is a vertical water storage tank rated for a specific gravity of 1.0, which covers water and other contents no heavier than water. A full tank of water weighs 4,587 pounds, and that 4,587 pounds is the maximum rated contents weight, so plan your pad and base support around a fully loaded tank, not an empty one. The base is a 67-inch-diameter round footprint and the tank stands 44 inches overall to the top of the dome, so confirm your slab or stand can carry the full load across that round base and plan lid access and fill-line clearance to that height. If you are sizing a tank to a duty cycle or a storage target, the Tank Sizing Calculator and our Tank Sizing Guide walk you through matching capacity to demand. For outlet, fitting, and gasket details, see the technical drawing on this page and confirm fitting and gasket sizes off that drawing or by phone before you order plumbing, so nobody assumes an outlet size.
Common uses and good practice
A 550 gallon vertical tank like this is a workhorse for rural and remote water supply, irrigation buffering, and reuse storage. If you are building toward a private fire-protection reservoir, our guide on fire-water reservoir tank design covers NFPA 22 sizing discipline and freeze protection for cold-climate service. For greywater, rainwater, and HVAC condensate collection, see our breakdown of industrial water reuse tank topology. Whatever the application, the foundation matters: review concrete pad sizing for above-ground polyethylene tanks before you set it, and run a hydrostatic test at commissioning to catch fitting leaks and monitor pad settlement during the first water fill.
The mistake to avoid
This tank carries a 1.0 specific gravity rating, which means it is engineered for water-weight contents only. Do not fill it with a liquid heavier than water without confirming a higher-rated tank is required first. For contents heavier than water, ask us about a higher specific-gravity-rated tank at 866-418-1777 before you buy. Overloading the wall with denser contents is the most common and most expensive mistake on a tank like this. Match the contents to the rating, support the full 4,587-pound load, and this vertical storage tank will give you long, dependable service.
This Norwesco vertical water storage tank ships LTL freight, quoted live to your ZIP. It ships from the Norwesco plant that serves your region among Fairfield, TX; Griffin, GA; Hanford, CA; Lancaster, OH; Owego, NY; Shawnee, OK; Tooele, UT; and Washougal, WA. Get an exact freight number with our Freight Cost Estimator, or call us at 866-418-1777 and we will quote it for you.
