The Chem-Tainer 150 Gallon Open Top Batch Storage Tank (SKU TC3148AA) is a 48-inch-tall cylindrical open top tank built for batch storage and bulk water storage where you need full top access. It holds 150 gallons in a compact 31 x 31 inch footprint, so it fits tight equipment pads, wash bays, and rural fire-water reservoir corners without sacrificing volume. It is molded from natural white polyethylene.
Will this open top tank work for your application?
This is a 150 gallon open top storage tank standing 48 inches tall on a 31 x 31 inch base - a tall, narrow profile (roughly 1.55:1 height-to-width). Filled with plain water it carries about 1,251 pounds of contents. The tank also carries a 1.9 specific gravity rating, meaning the wall is rated to hold contents weighing up to roughly 2,377 pounds at maximum rated density - well above water. Size your pad and support to that 2,377-pound maximum, not the 1,251-pound water case, if you ever plan to run a denser batch in this open tank. Because of the tall, narrow geometry, a level, full-contact pad and proper anchoring or strapping matter more here than on a squat tank, especially when the tank runs partly full or sits in a wind- or seismic-exposed site. And because the top is fully open, this is a vented, ambient-pressure vessel meant for storage and batch work, not sealed or pressurized service. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm this 150 gallon white open top tank matches your throughput and footprint.
The mistake to avoid
The big one with an open top batch tank is treating the 1.9 specific gravity rating as a chemical clearance. It is not. The 1.9 rating tells you the wall can structurally hold a dense liquid up to that gravity; it says nothing about whether polyethylene resists what you put in it. Confirm chemical compatibility separately against the manufacturer's resistance chart, at the concentration and temperature you actually run, before committing this tank to anything beyond water. The other common slip is forgetting that an open top means evaporation, contamination, and overflow risk - if your batch sits, plan for a cover and freeboard above your fill line rather than running it to the brim.
Freight and ordering
As an open top batch tank, this unit has no factory-installed outlet, drain, or bulkhead fitting unless one is added - confirm your outlet and drain needs before ordering by calling 866-418-1777, and see the technical drawing on this page for exact dimensions. This tank ships LTL freight, quoted live to your ZIP. Chem-Tainer molds this line at several plants - Delano, MN; Hanford, CA; Hummelstown, PA; and West Babylon, NY for the mainland, plus Keaau, HI for Hawaii and Pacific delivery - and we ship from the location nearest you to keep freight cost down. Get a real number for your delivery address with the Freight Cost Estimator before you buy, or call 866-418-1777 and we will quote it for you. Planning the install? The guide to concrete pad sizing for above-ground polyethylene tanks walks through supporting that filled load. For heavier-than-water bulk storage roles, our fire-water reservoir tank design guide covers NFPA 22 sizing discipline, and the industrial water reuse tank topology overview covers where open top storage tanks fit into grey-water and rainwater aggregation trains.
