The Chem-Tainer 73 Gallon Open Top Batch Storage Tank (SKU TC3024AA) is a cylindrical, open-top polyethylene tank built for top-access batch and storage duty where you need to reach in, fill, scoop, or stir without working around a sealed lid. At 30 inches in diameter and 24 inches tall, it holds 73 gallons in a compact 30.0 x 30.0 inch footprint. That wider-than-tall profile sits low and stable, keeps the center of gravity down during agitation, and makes the tank easy to reach into - a real advantage over tall, narrow open-tops that want to tip when you stir them. It is molded in natural white polyethylene.
Will it work for your batch?
This is an open top tank, so it is sized by what you pour into it, not by a sealed fill line. In water service the tank is full at 73 gallons and weighs about 609 lb, contents plus shell. The wall carries a specific-gravity rating of 1.9 - the heaviest-rated wall in this size class - and that rating, not extra volume, is the real selling point: it lets the tank hold denser-than-water liquids that a standard 1.0 to 1.35 SG tank could not. The 1,157 lb maximum contents figure is what a full 73 gallons of 1.9-SG liquid weighs; it is the SG ceiling, not free headroom on top of a water fill. Confirm your batch density before you load: water is specific gravity 1.0, so you have margin for heavier liquids, but stay inside the 1.9 rating and let contents weight, not gallon count, govern the limit. Use the Tank Sizing Calculator and the Tank Sizing Guide to match this open top tank to your actual fill volume and weight, and confirm your stand or pad can carry the loaded figure before you commit.
Fittings, mounting, and support
This open-top tank ships with no pre-installed fittings or gaskets. Outlets, bulkhead fittings, and gaskets are added in the field to suit your plumbing, so confirm size and placement against the technical drawing on this page before you drill. Because the tank is flat-bottomed, it needs full, continuous support under the entire base - not a ring or a partial frame. For an above-ground install, pour or verify a level pad that carries the full loaded weight; our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework for getting that base right. Refer to the technical drawing on this page for exact body and base dimensions before you build the support.
The mistake to avoid
The most common error with an open top tank like this one is loading it past its weight rating before it looks full. The cap is 1,157 lb of contents, regardless of how much volume that represents, and a dense liquid can hit that ceiling well before the tank looks full - so do the density math first. The second mistake is treating an open-top tank as a sealed vessel: it is open to atmosphere by design and intended for batch and storage duty, not for pressurized or fully enclosed service.
This Chem-Tainer white open top tank ships LTL freight from the West Babylon, New York plant, quoted live to your ZIP code. Get your exact rate on the Freight Cost Estimator, or call 866-418-1777 and we will work the numbers with you.
