The Chem-Tainer 4000 gallon HDPE vertical liquid storage tank is built for high-volume bulk liquid storage where one large footprint beats a bank of smaller tanks. This vertical tank stands 140 inches tall (just under 11.7 ft) on a 140 in (11.7 ft) diameter base, molded in natural white polyethylene, which on these tanks typically allows a rough liquid-level read through the wall. Filled with water it carries roughly 33,360 pounds of contents, so the pad, the access route, and the freight planning all need to account for real size and weight from day one.
Will this tank work for your liquid?
The tank body carries a 1.9 specific gravity rating, which is the strongest reason to choose this size. If you are storing a liquid heavier than water (up to 1.9 SG, roughly 63,384 pounds when full), this tank's wall is rated for it where a standard lighter-duty water tank is not. Filled with plain water you are at about 33,360 pounds; against the full 1.9 SG rating the contents can reach roughly 63,384 pounds. Match your liquid's actual specific gravity against that 1.9 number before you commit. That headroom is why this size sees duty for fire-water reservoirs, agricultural water, rainwater capture, and general bulk liquid storage. If you are still sizing the system, the Tank Sizing Calculator and Tank Sizing Guide walk you through volume, footprint, and fill weight, and our guide on HDPE tank wall thickness and ASTM D1998 sizing logic explains why wall rating and headspace matter on a tank this tall.
Foundation, access, and the mistake to avoid
The single most common error on a tank this large is under-building the pad. A 140 in diameter base loaded to 33,360 pounds of water, or more under heavier liquids near the 1.9 SG rating, demands a level, fully supporting foundation across the entire footprint. Vertical polyethylene tanks are designed to sit flat on continuous support, not to bridge gaps or perch on partial bearing, so a reinforced concrete pad sized to the full 140 x 140 in footprint is the right approach. Because the tank is 140 in tall, also verify overhead clearance and your delivery access-route height before the truck arrives. One more note on plumbing: fitting sizes and locations are not listed in our spec data for this SKU, so call 866-418-1777 to confirm outlet, fill, and vent configuration before ordering.
Freight and ordering
A 4,000 gallon vertical storage tank ships LTL freight, quoted live to your ZIP from the nearest stocking plant, which for this tank is Hummelstown, PA. Because of the size, freight is a real line item, so get your number before you order with the Freight Cost Estimator, or call us at 866-418-1777 and we will quote it for you. If you are sizing a fire-water reservoir, our fire-water reservoir tank design guide covers NFPA 22 sizing discipline, and for a deeper buying background the 4000 Gallon Vertical Liquid Storage Tank Complete Buyer's Guide and our Snyder vs Norwesco vs Chem-Tainer vertical tank comparison are worth a read before you buy.
