The Enduraplas 1125 gallon green vertical storage tank (SKU THV01125G) gives you 1,125 gallons of polyethylene bulk water storage on a square 85 x 85 inch footprint that stands just 56 inches tall. It carries a 1.9 specific gravity structural rating, so the shell is built with real strength margin beyond what plain water requires - it can hold liquids up to 1.9 specific gravity, denser than water at 1.0, which makes it a workhorse for heavier process liquids and brines as well as rainwater, fire-reserve, and process water.
Will it work for your site?
Filled with water, this tank holds roughly 9,382 pounds of contents; at its 1.9 specific gravity rating it is engineered to carry up to 17,827 pounds. The gap between those two numbers is the shell's strength margin, and it is exactly why the rating matters when you size a foundation. The 85 x 85 inch footprint - reserve roughly 7 x 7 feet of level pad area - spreads that load across a wide, square base, which keeps standing height down to 56 inches and makes this vertical storage tank easier to fill, inspect, and stabilize than a tall, narrow vessel. If you are matching tank volume to demand, run your numbers through the Tank Sizing Calculator and the Tank Sizing Guide before you commit to a size.
Pad and foundation
A wide square footprint and nearly five tons of full water weight mean the slab matters as much as the tank. Size the slab for the loaded weight you will actually run - 9,382 pounds full of water, up to 17,827 pounds at the 1.9 SG rating - never the empty shell. Before you pour, walk through Concrete Pad Sizing for Above-Ground Polyethylene Tanks so the foundation is matched to the loaded weight. A pad that is level and fully supports the base is the single biggest factor in long service life for a vertical tank this size.
Common uses and the mistake to avoid
This is a strong fit for fire-water reserve, rainwater capture, and industrial water reuse storage. If fire protection is the job, size the reservoir to your draw and refill discipline using Fire-Water Reservoir Tank Design for Rural and Remote Sites - and in freezing climates, plan freeze protection for the stored reserve, which that same guide covers. For collected rainwater, grey-water, or HVAC condensate, the storage-train sequencing in Industrial Water Reuse Tank Topology and the first-flush diverter guidance in Bushman Rainwater Harvesting Tanks will keep stored water cleaner. The mistake to avoid: do not undersize the foundation against the empty tank weight - this vessel can carry up to 17,827 pounds of rated contents, and the pad has to be built for the loaded number. Confirm fitting and outlet locations before you plumb the inlet and discharge.
This tank ships LTL freight from the Enduraplas plant in Converse, TX, with freight quoted live to your ZIP. Get your exact rate with the Freight Cost Estimator, or call us at 866-418-1777 for help matching the tank, fittings, and delivery to your site.
