The Chem-Tainer 650 Gallon Vertical Storage Tank (SKU TC5670IC-BLACK) is a black polyethylene vertical storage tank standing 70 inches tall on a 56 x 56 inch base, built for bulk water and general liquid storage where you need real volume without a sprawling footprint. It carries a 1.5 specific gravity rating, which tells you how much weight the tank wall and fittings are engineered to hold - the practical answer to "will this work for my application" starts with that number and the weights below.
Will it hold your water?
At 650 gallons of plain water, the contents alone weigh about 5,421 pounds. The tank is rated to carry contents up to roughly 8,132 pounds, so on water you are running with about 2,711 pounds of unused capacity - roughly 33% headroom before you reach the design limit. That rated ceiling is exactly where the 1.5 specific gravity figure comes from: 8,132 divided by 5,421 works out to about 1.5, meaning this tank handles any liquid up to 1.5 SG at a full 650 gallons - plain water, most water-based solutions, and brines up to that density. If you are sizing for a specific liquid, run your numbers through the Tank Sizing Calculator or read the Tank Sizing Guide before you commit to a footprint.
Pad and footprint
Plan the foundation for the full load, not the empty shell. At its 8,132-pound max rating spread over the 56 x 56 inch base (about 21.8 square feet), the pad carries roughly 373 pounds per square foot. Get that right and a fully loaded tank sits flat and stable for its whole service life; get it wrong and the wall takes uneven stress. Review concrete pad sizing for above-ground polyethylene tanks so your base is engineered to that number. For fitting locations, outlet sizing, and exact wall dimensions, see the technical drawing on this page - it is the authoritative reference for where connections land, so confirm it against your plumbing plan before ordering.
Freight: how this tank ships
This vertical storage tank ships by LTL freight from the Chem-Tainer plant in Hanford, California. Freight is quoted live to your ZIP code rather than bundled into the list price, so you always see the real number. Because LTL cost is driven by distance, West Coast and Southwest ZIPs ship shortest from Hanford and generally see the lowest freight. Get an instant quote with the Freight Cost Estimator, or call 866-418-1777 and we will handle it by phone.
The mistake to avoid
The most common error on a black vertical storage tank like this is treating the 1.5 specific gravity rating as unlimited. It is not - it caps total contents weight at about 8,132 pounds. Store a liquid denser than 1.5 SG at full volume and you are past the tank's design envelope. Water sits well within range at 5,421 pounds; anything heavier, do the math against that 8,132-pound ceiling first. Whether this is a general bulk storage vessel, a component in an industrial water reuse train, or backup storage for a small site, size the tank to the load and let the sizing tools confirm it. Questions on this 650 gallon Chem-Tainer vertical tank? Call 866-418-1777 or start a freight quote to see your cost to ZIP.
