The Chem-Tainer 150 Gallon Polypropylene Open Top Batch Storage Tank is a 48-inch-tall cylindrical open top tank molded in white polypropylene, sized for batch storage and short-cycle water duty where you need easy top access to the contents. It holds 150 gallons and occupies a 31.0 x 46.0-inch footprint of floor or platform space, so it fits into a corner, on a platform, or alongside a process line without demanding a large pad. The polypropylene wall is the spec that sets this tank apart from a standard poly storage tank: PP runs more rigid and handles a wider temperature window than common storage poly, which is why this open top is suited to its intended batch and short-cycle storage duty.
Will it work for your batch?
Full of water, this tank carries about 1,251 pounds, and that loaded weight is the number that drives every decision under it. Use it to size your concrete pad or platform, confirm your floor or mezzanine can carry the point load, and plan how you will support the 31.0 x 46.0-inch footprint. Because it is an open top tank, you fill, sample, and clean from the top, which makes it practical for batch storage rather than sealed pressurized service. One detail to confirm before you order: in the base configuration this open top vessel is supplied without factory fittings, so plan on a top-draw pump or specify a bulkhead separately rather than assuming a bottom outlet is already in the wall. If you are not certain this 150 gallon capacity matches your process volume and refill cadence, run the numbers in our Tank Sizing Calculator or walk through the logic in the Tank Sizing Guide before you commit. For above-ground placement, our guide to concrete pad sizing for above-ground tanks covers the ACI framework for supporting a tank at this filled weight.
The mistake to avoid with an open top tank
The most common error here is treating an open top tank like a closed system. With no sealed lid in the base configuration, this vessel is built for storage at atmospheric pressure, not for pressurized or fully sealed service, and an open surface means evaporation, contamination from above, and overflow are all on you to manage. Plan a cover or screen if your application needs one. If your process needs draining down to a low residual or solids handling, an open top cylindrical tank behaves differently than a cone bottom design; the comparison in our write-up on Chem-Tainer cone bottom drainage at 30 vs 45 degrees is worth a read if drainage matters to you. For multi-stream storage and reuse layouts, the industrial water reuse tank topology guide shows how open top storage tanks fit into banded storage trains.
Freight and getting one to your site
This tank ships LTL freight, quoted live to your ZIP code. It ships from the nearest Chem-Tainer plant to you, drawn from West Babylon, NY; Hummelstown, PA; Delano, MN; Hanford, CA; and Keaau, HI, so your freight reflects the closest origin rather than a single cross-country lane. To see your real number, run your ZIP through our Freight Cost Estimator, and reference the technical drawing on this page for dimensions and clearances before you arrange delivery. For help confirming this 150 gallon open top polypropylene tank is right for your batch storage job, call us at 866-418-1777.
