The Chem-Tainer 650 Gallon Vertical Storage Tank (SKU TC5670IC-NAT) is a molded polyethylene vertical tank built for straightforward bulk liquid storage. It stands 70 inches tall on a 56-inch by 56-inch round footprint, holds 650 gallons, and comes in natural white. As a vertical storage tank, it sits flat on a prepared pad and stores water without the freight and footprint of a horizontal or below-grade tank.
Will it work for your site?
Plan for a level pad at least 56 inches square with 70 inches of vertical clearance, plus additional headroom above that for the lid and any fill fitting. Filled with water, this tank carries roughly 5,421 pounds of contents, so the pad and any supporting structure need to handle that load plus the tank weight. The wall is rated to a 1.5 specific gravity, meaning it is engineered to hold contents up to 1.5 times the weight of water - the maximum rated contents weight works out to about 8,132 pounds at that rating. If there is any chance you will store a fluid heavier than water, size the pad to the 8,132-pound rated maximum rather than the 5,421-pound water figure. For plain water storage, rainwater catchment, or a fire-water reservoir, that 1.5 rating leaves plenty of structural margin. Use the Tank Sizing Calculator and Tank Sizing Guide to confirm 650 gallons matches your draw-down and refill cycle.
Set it on the right foundation
A vertical tank this size needs full, continuous support under the entire base - never bridge it across joists or an undersized slab. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework for sizing that pad to the full-water load. If this is going into rural fire protection, the fire-water reservoir design guide covers NFPA 22 sizing and freeze protection.
Confirm fittings before you plumb
Fitting size, outlet location, and gasket material are confirmed per order on this SKU, so do not assume a standard bulkhead or outlet is included - contact us at 866-418-1777 to lock those details before you plan your plumbing. The most common miss on a white vertical storage tank is pushing it into chemical service on the assumption that the 1.5 specific-gravity wall covers any liquid. It does not - specific gravity is a weight rating, not a chemical-resistance rating. Keep this tank on water and water-adjacent duty; if you need to store a chemical, confirm resin and gasket compatibility first rather than assuming. Buyers weighing brands can compare build and rating differences in our Snyder vs Norwesco vs Chem-Tainer vertical storage tank comparison.
This 650 gallon Chem-Tainer ships LTL freight from the Hanford, California plant, quoted live to your ZIP - West Coast ZIPs will see materially lower LTL than distant regions, so get your real number in seconds with our Freight Cost Estimator or call 866-418-1777. We will confirm access and offload needs so the delivery lands clean.
