The Norwesco 220 gallon black vertical storage tank holds 220 gallons of polyethylene-stored liquid, standing 44 inches tall on a 42 by 42 inch round footprint. The black resin blocks light to slow algae growth, and the tank carries a 1.5 specific gravity rating, so it handles water and contents up to that density without exceeding its design wall limits. If you have been searching for a Norwesco vertical storage tank in this capacity, this is the configuration that fits a compact pad while still holding a meaningful reserve.
Will this tank work for your job
The footprint is 42 inches across at 44 inches tall, so plan your slab, doorway clearance, and any overhead fill access around those numbers. Filled with water (specific gravity 1.0), the contents weigh about 1,835 pounds; the tank is rated to carry contents up to 2,752 pounds at its full 1.5 specific gravity. That second figure is the one that governs site work: if you store anything denser than water, size the pad and any elevated stand to 2,752 pounds, not the 1,835 pound water weight. The low 42 by 44 inch profile keeps the center of gravity down, which is part of why vertical storage tanks in this size suit bulk water reserve, agricultural supply, and rural fire-water staging.
Fittings and the technical drawing
The fitting layout is shown on the technical drawing on this page. That drawing reflects a revised lid thread, so verify the current lid thread spec against your cap, fill assembly, or fitting before you order, since field-modifying a poly tank is harder than planning the connections up front. If you want certainty, call 866-418-1777 and we will confirm the as-shipped thread for your unit.
Sizing and site planning
Before committing to 220 gallons, run your draw rate and refill cycle through the Tank Sizing Calculator or the Tank Sizing Guide to confirm the reserve fits your demand. If this tank lives outdoors on grade, the concrete pad sizing guide for above-ground polyethylene tanks walks through the ACI 360R-10 framework for supporting the loaded tank without cracking or settlement. For rural fire-protection use, our write-up on fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing and cold-climate freeze protection, and if you are aggregating rainwater or grey water, the industrial water reuse tank topology guide shows how a tank like this fits a quality-banded storage train.
The mistake to avoid
The common error on a tank rated to 1.5 specific gravity is assuming that rating means it suits every liquid. It defines the maximum density the wall is built to hold, not chemical compatibility. This is a black water-storage tank; if you intend to store anything other than water, confirm the contents against the resin and specific gravity first, and call us so we match you to the correct tank rather than overloading or chemically attacking this one.
This tank ships LTL freight from the nearest Norwesco plant to your delivery ZIP, drawn from facilities including Fairfield, TX; Griffin, GA; Hanford, CA; Owego, NY; Shawnee, OK; Sheldon, IA; and Washington Court House, OH, so the actual origin is whichever plant is nearest and in stock. Get an exact rate with the Freight Cost Estimator, or call 866-418-1777 and we will quote freight to your ZIP and confirm the right tank for your application.
