Chem-Tainer 1150 Gallon Plastic Open Top Batch Storage Tank

The Chem-Tainer 1150 Gallon Open Top Batch Storage Tank is a rectangular, open-top polyethylene reservoir built for batch mixing, dosing, and above-ground bulk water storage where you need frequent top access. It stands 66 inches tall on a square 72 x 72 inch footprint, so it is actually wider than it is tall, a low, stable profile that drops onto a compact pad while holding a full 1,150 gallons. The open top makes it a working tank rather than a sealed one: you can see the level, add media by hand, agitate a batch, and clean it out between runs.

Will this open top tank work for your job?

The tank type is Open Top - Rectangular, which is why the base is a clean 72 x 72 inch square rather than a round diameter. That square footprint uses pad space efficiently and lets you gang several units side by side for a multi-batch line, and the low 66 inch height keeps ladder or gantry access manageable when you are charging or sampling a batch. Full of water, the tank and contents weigh about 9,591 pounds, so plain-water service puts roughly five tons on that 72 x 72 inch footprint. The body carries a 2.0 specific gravity rating, meaning the wall is built to hold contents up to twice the density of water, so at that ceiling the maximum rated contents weight climbs to about 19,182 pounds. Size your pad to what you actually plan to store: 9,591 pounds for water, higher if you are batching a denser solution or slurry within that 2.0 rating. If you are still settling on volume or load, run the numbers through the Tank Sizing Calculator and the Tank Sizing Guide before you commit.

Mounting, pad, and the mistake to avoid

Because this is an open top rectangular tank, it is not designed to be sealed, pressurized, or shipped full of liquid, and it is a working batch vessel rather than a transport or sealed-storage tank. The single most common mistake is setting a heavy open top tank on unlevel or undersized ground: a square base concentrates load at the corners, and an unlevel pad will rack the walls and pool contents to one side. Pour and level a proper pad sized to your real filled weight before charging the tank. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework for getting that foundation right. At 1,150 gallons this tank also works as a rural or remote fire-water reservoir; our guide on fire-water reservoir tank design for rural and remote sites covers the NFPA 22 sizing discipline, and if it is feeding a reuse or aggregation train, the industrial water reuse topology guide shows how open top batch tanks fit into staged storage.

Freight and how to order

This tank ships by LTL freight from West Babylon, NY, quoted live to your ZIP code so you only pay for the lane you actually use. Get a freight number in seconds with the Freight Cost Estimator, or call 866-418-1777 and we will size the batch tank, confirm the pad requirement, and book the freight for you. Listed price is before freight; the estimator and our team handle the freight quote to your ZIP.