The Enduraplas 1200 Gallon Dark Green Vertical Water Storage Tank is a 1,200-gallon polyethylene vertical tank built for bulk water storage in a low-profile package: it stands just 60 inches tall on a 90 x 90 inch base. That squat geometry trades a wider pad for lower height and a lower center of gravity, which makes the tank easier to fill, more stable in wind and seismic exposure, and able to fit under low clearances where a tall slim vertical will not. The dark green color cuts light penetration to slow algae growth in outdoor service, and the tank carries a 1.1 specific gravity rating, so the wall is engineered for water and water-density liquids up to 1.1 SG.
Will it work for your site?
Filled with water at 8.34 lb per gallon, this tank carries roughly 10,008 pounds of contents at full volume. Its 1.1 SG wall rating means the polyethylene is built to handle up to about 11,009 pounds of contents, so it covers water and slightly denser-than-water liquids (up to roughly 9.17 lb per gallon) without stepping up to a higher-SG model. That loaded weight is the number that governs your installation: a full 1,200-gallon vertical tank is a five-ton point load, and it has to sit dead-level on a continuous pad sized for the 90 x 90 inch footprint. If you are still choosing between this size and a taller or wider model, run the numbers through our Tank Sizing Calculator and read the Tank Sizing Guide before you pour anything. For the slab itself, our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework so the pad actually carries the load.
How it ships
This vertical storage tank ships LTL freight from the Enduraplas plant in Converse, Texas, with freight quoted live to your ZIP code. It travels standing upright and needs forklift or equipment access at delivery, so plan your receiving before the truck arrives. Get an exact number for your address with the Freight Cost Estimator, or call us at 866-418-1777 and we will quote it by phone.
The mistake to avoid
The most common error on a water storage tank this size is under-building the foundation and skipping a controlled fill. The pad has to be full-footprint, level, and rated for the loaded weight; setting one of these on gravel, uneven ground, or an undersized slab is how you crack a wall over time. One more caveat on that 1.1 SG headroom: if you ever use it for a denser-than-water solution, the fitting gaskets and seal materials must be verified compatible with that liquid before fill, since the SG rating covers the tank wall, not the seals. Fittings, gaskets, and outlet configuration are confirmed at order, so call 866-418-1777 or see the technical drawing on this page for the as-supplied fitting layout. After the tank is set, fill it with water in controlled stages and watch for settlement and fitting leaks rather than dumping it full on day one; our walkthrough on hydrostatic test methodology for new-install tank acceptance covers the fill discipline and hold-time math. If this tank is part of a rural fire-water reservoir or an industrial reuse train aggregating grey-water, rainwater, or HVAC condensate, our guides on fire-water reservoir tank design and industrial water reuse tank topology show how a vertical water tank fits the larger system.
See the technical drawing on this page for the full dimensional layout. Ready to spec this one in? Get your LTL freight number through the Freight Cost Estimator or call 866-418-1777, and our team will confirm the right fitting and outlet configuration for your water storage project.
