The Enduraplas 1550 Gallon Black Vertical Water Storage Tank is a polyethylene bulk-water vessel built for above-ground storage at remote sites, ranches, fire reserves, and any setup that needs to hold a large volume in a stable, narrow footprint. It stands 80 inches tall on an 85 by 85 inch base, so it concentrates 1,550 gallons into a single round vertical column rather than spreading the load across a wide tank pad. The black shell blocks light to suppress algae growth compared with translucent tanks in outdoor service; in hot climates, expect some solar heat gain in the stored water.
Will it work for your job?
This is a vertical water storage tank rated to a specific gravity of 1.1, which covers water and water-based contents up to that density. Filled with water, the contents weigh roughly 12,927 pounds, and the tank is rated to hold contents weighing up to 14,220 pounds at the 1.1 specific gravity limit. Those numbers matter before you ever set the tank: a loaded vertical tank of this size puts well over six tons onto its 85 by 85 inch footprint, so the pad underneath has to be engineered to carry it. Use the Tank Sizing Calculator and our Tank Sizing Guide to confirm the 1,550-gallon size fits your draw rate and refill cycle, and review the technical drawing on this page for the dimensions and port layout before you commit to a foundation plan.
Check the specific-gravity ceiling first
The single most common mistake with a water-rated vertical is storing something denser than the tank is built for. This shell is rated to 1.1 specific gravity, which is water-grade. If you plan to store liquid fertilizer, brine, or a chemical heavier than water, you can overload this tank even at a partial fill, and you need a 1.5-or-higher SG-rated vessel instead. Call 866-418-1777 and we will spec the right tank for the density you are storing. On fittings: bulkhead fittings and gaskets are sized to your plumbing and quoted separately, so confirm the inlet, outlet, and lid or manway sizes with us at order rather than assuming them from the listing.
Setting it on a proper pad
The other big mistake with a tank this size is putting it on a pad that has not been sized for the loaded weight, or on ground that settles unevenly once the water goes in. A vertical polyethylene tank wants full, flat, continuous support across its whole base. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework so your foundation matches the 14,220-pound rated load, and the hydrostatic test methodology guide covers the controlled first fill, pad-settlement monitoring, and fitting leak checks that prove the install before you trust it.
Fire reserve and water-reuse use
At 1,550 gallons this tank is a common building block for private fire-protection storage and for banked water-reuse trains. If you are sizing a rural or remote fire reservoir, our write-up on fire-water reservoir tank design covers NFPA 22 sizing discipline and cold-climate freeze protection. For grey-water, rainwater, and HVAC condensate aggregation, see our industrial water reuse tank topology guide to see where a vertical storage tank of this capacity fits in a quality-banded train.
This tank ships LTL freight from Converse, TX, with the cost quoted live to your ZIP code rather than baked into the list price. Because a loaded vertical of this size moves on a flatbed and often needs a liftgate or limited-access handling, confirm your site access (forklift versus liftgate) so we route it correctly. Run your delivery address through the Freight Cost Estimator for a freight number, or call us at 866-418-1777 and we will work out the best routing for a tank this size and confirm dimensions, weights, and lead time before you order.
