1125 Gallon Plastic Vertical Water Storage Tank

The Enduraplas TLV01125 is a 1,125-gallon vertical water storage tank built for irrigation, fire-reserve, and general water-storage duty where you need real volume in a compact 85-inch square footprint. It stands just 56 inches tall on an 85 x 85 inch base, so it clears most low-bay and interior installs while dropping onto a modest pad. The tank ships with a 2-inch threaded outlet and a 16-inch lid, giving you a straightforward fill-and-draw setup out of the box. Confirmed dimensions and fitting placement are on the technical drawing on this page.

Will it work for your site?

At full water level this tank carries 9,382 pounds of contents across its 85 x 85 inch base — roughly 187 lb per square foot of gross footprint. That loaded number, not the empty shell, drives pad design and siting: a tank this size wants a level, continuous, load-rated foundation. Our concrete pad sizing guide walks the ACI 360R-10 framework for above-ground polyethylene tanks so the pad matches the loaded weight. This tank is rated for water service; if you are storing anything heavier than water, call 866-418-1777 to confirm the correct wall spec before ordering. If you are still deciding on capacity, run the numbers with our Tank Sizing Calculator and the Tank Sizing Guide before you commit to a footprint.

Fittings and setup

The 16-inch lid gives access for inspection, level sensing, and vent or overflow additions, while the 2-inch threaded fitting handles your primary supply or draw line. Bring a 2-inch NPT bulkhead or adapter with a compatible gasket, and call to confirm thread type and gasket material before you plumb it. At 56 inches you clear most low-bay spaces, but plan added height above the shell for the lid access, vent, and overflow. Before you put a new install into service, pressure the system with water and hold it — our hydrostatic test methodology covers water-fill discipline, pad settlement monitoring, and fitting leak detection so you catch a weeping thread before the tank is full and hard to reach.

Fire-reserve and reuse duty

A 1,125-gallon vertical is a common building block for rural fire-water reservoirs and industrial water-reuse trains. If this tank is feeding private fire protection, our NFPA 22 reservoir design guide covers sizing discipline and freeze protection for cold-climate service. For grey-water, rainwater, or HVAC condensate aggregation, the water reuse topology guide shows where a vertical bulk water storage tank fits in a quality-banded storage train.

This tank ships LTL freight, palletized and quoted live to your ZIP code. Get a number in seconds with our Freight Cost Estimator, or call One Source Plastics at 866-418-1777 and we will confirm the fittings, plan delivery, and answer any sizing questions before you order.