The Chem-Tainer 4000 Gallon Vertical Storage Tank is a full-size polyethylene bulk tank built for water and general non-aggressive storage, standing 140 inches tall on a 95-inch diameter footprint. It carries a 1.5 specific gravity rating, which is the number that tells you what this tank can safely hold: contents up to 1.5 specific gravity, or roughly 12.5 pounds per gallon. For water service at about 8.34 pounds per gallon, a full tank weighs around 33,360 pounds, while the 1.5 SG rating means the walls are engineered to carry contents up to 50,040 pounds. That headroom is why this vertical storage tank works for water, where a full fill still stays well inside the design envelope.
Will it work for your site?
Sizing is the first thing to get right. This is a 4,000 gallon vertical tank measuring 95 inches in diameter and 140 inches tall, so confirm your site clearance and access before delivery. A tank this size and weight needs a properly engineered base: a full water load puts more than 33,000 pounds onto that 95-inch circular footprint, and if you spec the pad to the tank's full rated envelope of 50,040 pounds you have covered the conservative case. Either way the foundation has to carry it evenly. Our concrete pad sizing guide walks through the ACI 360R-10 framework for above-ground polyethylene tanks. If you are still confirming capacity against your daily draw or reservoir needs, run the numbers with our Tank Sizing Calculator and Tank Sizing Guide.
Common uses and the mistake to avoid
At 4,000 gallons this vertical storage tank suits process water holding, agricultural supply, industrial water reuse, and rural fire-water reservoir duty. For reuse trains that aggregate grey-water, rainwater, or HVAC condensate, our industrial water reuse topology guide covers how to band and sequence storage. For private fire protection, the fire-water reservoir design guide covers NFPA 22 sizing and cold-climate freeze protection. The mistake to avoid: this tank is rated to 1.5 specific gravity, so it is sized for water and lighter liquids, not for dense chemicals that would demand a higher-SG wall. Match the contents to the rating, and if you are weighing brands at other capacities, our Snyder vs Norwesco vs Chem-Tainer comparison shows how the same class of vertical tank differs by manufacturer.
Fittings and drawing
For exact dimensional detail, outlet sizes, and any factory fitting locations, refer to the technical drawing on this page. It is the authoritative reference for how this specific tank is configured, so you can match inlet and discharge points to your own runs before ordering.
This is a large-diameter tank that ships LTL freight on its own, quoted live to your ZIP code. Get a freight number in seconds with our Freight Cost Estimator, or call 866-418-1777 and we will work through the tank, foundation, and delivery together. The list price shown is before freight, which is quoted separately to your delivery ZIP.
