The Enduraplas 1350 Gallon Black Vertical Water Storage Tank is a polyethylene bulk-water tank built for above-ground water storage where you need real volume in a low overhead-clearance space. It holds a 1,350-gallon nominal capacity and stands just 71 inches tall on an 85-inch by 85-inch base, so it sits as a wide, low-profile tank rather than a tall one - a stance that helps under low canopies and in windy, open sites. The black exterior blocks light to discourage algae growth in standing water, making it a practical pick for outdoor vertical water storage that stays put year-round.
Will it hold what you're putting in it?
This vertical water tank carries a 1.1 specific-gravity rating, which means it is structurally engineered for water and water-weight contents up to that density - so plain water sits comfortably inside the rating, with headroom for slightly denser water or light additives. Run the weights before you set it: filled with water the tank and contents reach roughly 11,259 pounds, and at its maximum rated 1.1-SG contents it reaches about 12,385 pounds. Those are the loads your pad and your site have to carry, so plan the foundation around the full 12,385-pound figure, not the empty shell. If you are sizing for a specific draw-down or refill cycle, the Tank Sizing Calculator and Tank Sizing Guide walk you through matching capacity to demand.
Confirm your fittings before you order
Outlet, fill, vent, and lid or manway configuration vary by build, so confirm the fitting layout you need - outlet size, overflow, and lid opening - before you place the order rather than assuming a default. Call us at 866-418-1777 and we'll verify the configuration on this water storage tank against your plumbing and pump setup. You can also reference the technical drawing on this page for the overall dimensions and outline.
The mistake to avoid
The most common error on a vertical storage tank this large is treating the pad as an afterthought. The 85 x 85 inch footprint has to sit fully and evenly supported on a level slab rated for more than six tons of loaded weight; set on uneven or under-built ground, the tank concentrates stress at the base and settles unevenly. Build the pad to the full loaded figure first, then fill. Our Concrete Pad Sizing for Above-Ground Polyethylene Tanks guide covers the ACI framework for getting that slab right, and once it's installed our Hydrostatic Test Methodology guide shows how to water-fill, monitor pad settlement, and check fittings before you commit the tank to service. If this tank is headed for rural fire protection or stored water reserve, the Fire-Water Reservoir Tank Design guide covers NFPA 22 sizing and cold-climate freeze protection; for grey-water, rainwater, or condensate aggregation, see our Industrial Water Reuse Tank Topology guide.
This Enduraplas vertical storage tank ships LTL freight from the Converse, TX plant, quoted live to your ZIP - and because the rate scales with distance from Converse, it pays to pull a real number early with the Freight Cost Estimator. Or call us at 866-418-1777 to talk through your install and we'll help you confirm the tank, the pad, the fittings, and the freight before you order.
