The Chem-Tainer 250 Gallon Black Vertical Water Storage Tank is a tall, narrow polyethylene vertical tank built for water storage where floor space is tight. It holds 250 gallons in a 31-inch by 31-inch footprint and stands 84 inches tall, so it stores a meaningful reserve against a wall, in a pump house, or along a fence line without sprawling across a pad. The black exterior blocks light, which slows the algae growth that plagues clear and translucent tanks in outdoor service.
Will this water storage tank work for your site?
This is a vertical water tank rated to a specific gravity of 1.0, meaning it is engineered for water and water-weight liquids. Filled to capacity, 250 gallons of water weighs about 2,085 pounds, and that is the maximum rated contents weight for this tank. The tall 84-inch profile gives you usable head for gravity-fed lines, though the factory outlet and bulkhead configuration is not published with this listing, so confirm outlet size and placement when you request a quote at 866-418-1777 before you design your plumbing run. If you are deciding between this and a wider, shorter tank, run your numbers through the Tank Sizing Calculator or read the Tank Sizing Guide to match capacity, height, and footprint to your site. Buyers shopping this size are usually comparing a 250 gallon vertical storage tank against larger verticals, so confirm the footprint fits before you commit.
Where it fits
This is a water storage tank, not a chemical tank. The 1.0 specific gravity rating is the line to respect: it is correct for water and water-weight liquids such as rainwater and reuse water, but it is not rated for heavier liquids. If your application involves a liquid heavier than water, call 866-418-1777 and we will point you to a tank built with the correct higher specific-gravity rating instead of pushing this one past its limit. For grey-water, rainwater, or HVAC condensate capture, the water reuse tank topology guide walks through quality-banded storage trains. If your project leans toward a fire-water reserve, the fire-water reservoir tank design guide covers NFPA 22 sizing and freeze protection for cold-climate sites.
The mistake to avoid
The most common error with a tall vertical like this is setting it on an uneven or undersized base. At 84 inches tall with roughly 2,085 pounds of water at full, this tank puts about 310 pounds per square foot across its 31 x 31 footprint, and a vertical tank carries that load straight down. Hand that bearing-pressure number to whoever pours your pad or builds your stand: the foundation must fully support the entire footprint without flexing or tilting. The concrete pad sizing guide walks through the ACI 360R-10 framework for getting that foundation right, and you can review the technical drawing on this page for exact dimensions.
This tank ships LTL freight from Hanford, CA, so West Coast buyers will see the shortest transit while East Coast destinations should plan for longer lead time and a cross-country LTL rate. Freight is quoted live to your ZIP code: get your number from the Freight Cost Estimator on this page, or call us at 866-418-1777 and we will quote the freight and answer any questions about fit, footprint, or outlet configuration.
