The 225 Gallon Vertical Liquid Storage Tank from Norwesco is a white polyethylene vertical tank built for above-ground bulk water and liquid storage where a tall, small-footprint vessel makes sense. It holds 225 gallons, stands 77 inches tall, and sits on a 31 x 31 inch footprint, so it fits along a wall, in a pump house corner, or on a compact pad while still giving you usable head height for gravity feed. If you have been searching for a Norwesco vertical storage tank for water, this is the size that bridges the gap between small portable jugs and the larger vertical tanks.
Will it work for your site
This is a 31-inch diameter cylinder, 77 inches to the top, molded in white polyethylene with a 1.5 specific gravity rating. That 1.5 rating means the tank wall is engineered to safely carry liquids up to 1.5 times the weight of water. Filled with water (specific gravity 1.0), the contents weigh about 1,876 pounds, and the tank is rated to carry contents up to roughly 2,815 pounds at its full 1.5 SG limit. That same 1.5 rating is a quiet advantage: this one shell handles liquids heavier than water up to SG 1.5, so a buyer eyeing mild heavier-than-water service does not need a different tank, only the right fittings and a chemically compatible gasket. Plan your pad and anchoring around the loaded weight, not the empty shell. The tank comes with a flat fitting location for plumbing and a threaded opening for an 8-inch lid for fill and inspection access. See the technical drawing on this page for the exact fitting positions before you set your plumbing.
Sizing, pad, and gravity feed
For a tall 77-inch vertical at 225 gallons, the small 31 x 31 footprint concentrates a lot of weight on a small area, so a level, properly sized pad matters. The same height pays off for gravity work: a bottom outlet on a 77-inch tank gives you roughly six feet of static head, about 2.7 psi when full, which is enough to feed many drip and gravity irrigation runs without a pump. Run your numbers through the Tank Sizing Calculator and read the Tank Sizing Guide to confirm this capacity suits your draw and refill cycle. If you are pouring concrete, the concrete pad sizing guide walks through the ACI framework for above-ground polyethylene tanks. This size is also a common building block for rural fire-water reserves and for grey-water, rainwater, and condensate reuse trains, covered in our fire-water reservoir design guide and water reuse topology guide. For a full walkthrough of this exact model, see the 225 gallon vertical tank buyer's guide.
The mistake to avoid
The most common miss on a tall vertical like this one is treating the footprint as the only thing that matters. At 77 inches tall on a 31-inch base, the loaded center of gravity is high, so a tank that is not on a flat, level, fully supporting pad can lean or stress the wall over time. Set it on a continuous level surface that supports the entire base, not on bare uneven ground or a partial frame, and strap or anchor it to the pad for wind and seismic loads given that narrow base and high loaded center of gravity. Two access details matter too: add your outlet only at the flat fitting boss, where the wall is built to take a bulkhead fitting with a gasket matched to your liquid, and run an 8-inch vented lid rather than a fully sealed one, because a sealed water tank drawn down quickly can pull a vacuum and collapse the wall.
This tank ships LTL freight, quoted live to your ZIP from the nearest Norwesco plant among Sheldon, IA, Lancaster, OH, and Fairfield, TX. That three-plant footprint usually means faster, cheaper LTL across the eastern, midwestern, and south-central US than a single-warehouse seller can offer. Get a real number for your delivery address with our Freight Cost Estimator, or call us at 866-418-1777 to confirm fitting layout, lead time, and freight before you order.
3 Year Warranty
