The Enduraplas 870 Gallon Black Vertical Storage Tank is a 78-inch-tall polyethylene vertical built for above-ground bulk water and liquid storage where you need a tall, compact footprint. It holds 870 gallons on a 60-by-60-inch base, so it stacks volume vertically instead of spreading across your pad - a 5-foot by 5-foot footprint at 6.5 feet tall. The black resin blocks light to slow algae growth, which makes it a practical pick for non-potable water that sits for a while between uses. If you are comparing this against other vertical tank sizes, run your numbers through the Tank Sizing Calculator and the Tank Sizing Guide before you commit.
Will it work for your site
This is a vertical storage tank measuring 78 inches tall with a 60-by-60-inch footprint, rated for contents up to a 1.9 specific gravity. Filled with water, the tank and its contents weigh roughly 7,256 pounds; at its maximum rated 1.9 specific gravity, the contents alone can reach 13,786 pounds. Those numbers drive your foundation. Spread over the 25-square-foot base, full-water service puts about 290 pounds per square foot on your pad, and a high-density liquid at the full 1.9 rating drives that to roughly 550 pounds per square foot - check that figure against your pad and soil bearing rating. A tank this tall and this heavy needs a flat, fully supported, load-rated pad: sand it dead level or pour concrete, and never set it on uneven or point-loaded ground, since off-level support on a 5-foot base concentrates load. For pad design, the concrete pad sizing guide walks through the ACI framework for above-ground polyethylene tanks.
Fittings and outlet layout
Outlet, bulkhead, and lid specifications are not published in our spec data for this tank - they are shown on the technical drawing on this page. Read the fitting locations and sizes off that drawing and confirm them against your plumbing before you order, or call 866-418-1777 and we will verify any fitting with you by phone. Do not assume an outlet size or position until you have checked the drawing.
How it ships
At over 7,000 pounds full and a 60-by-60-inch footprint, this is an LTL freight item, not a parcel shipment. It ships from the nearest Enduraplas plant to your delivery ZIP - either Converse, TX or Neche, ND. Those two plants sit roughly 1,400 miles apart, so your ZIP strongly determines which origin you draw from and therefore the freight cost: a Northern Plains buyer ships from Neche, a Southern buyer from Converse. Freight is quoted live to your ZIP code rather than baked into the list price, so pull a ZIP-specific number before you order with the Freight Cost Estimator, or call 866-418-1777 and we will quote it for you.
The mistake to avoid
The most common error on a tank this tall is treating the 1.9 specific gravity rating as the only weight that matters. The 1.9 rating means the tank shell is built to handle a liquid up to 1.9 times the density of water - that is already a high-density rating at the top of the typical poly range, so for plain water service you are buying shell capability you will not load. The catch is your pad and anchoring have to be sized for whatever you actually store: water alone puts about 7,256 pounds on the foundation, while a high-density liquid at the full 1.9 rating drives that contents weight to 13,786 pounds. Size the foundation for the heaviest liquid you intend to store, not for water, and confirm the fitting locations on the technical drawing before delivery. If this tank is part of a rural fire-water reserve, the fire-water reservoir design guide covers NFPA 22 sizing and cold-climate freeze protection.
Ready to move on this Enduraplas vertical storage tank? Pull a live LTL freight quote to your ZIP with the Freight Cost Estimator, or call 866-418-1777 for help sizing and ordering. For water-reuse setups that aggregate grey-water, rainwater, or HVAC condensate, see our industrial water reuse tank topology guide.
