The 150 Gallon Open Top Total Drain Tank (Dish Bottom) from Bushman is a rectangular open-top vessel for batch water and low-specific-gravity liquid work where you fill from the top and want the tank to empty cleanly between runs. It stands 60 inches tall on a compact 30-by-30-inch footprint, holding a full 150 gallons without spreading across your floor. The dish-bottom geometry pitches liquid toward the drain, which is what "total drain" means in practice: minimal heel left behind at the end of a batch. It is a good fit for operations that value vertical capacity over a wide stance and need each batch cleared out rather than pooling on a flat floor.
Will it work for your process?
Start with the numbers. The tank measures 60 inches high, 30 inches long, and 30 inches wide, and those dimensions are verified against the launch spec. Filled with water it carries about 1,251 pounds, so the pad, stand, or floor underneath has to be rated for that fully loaded weight on a 30-by-30-inch footprint. Before you commit, run your volume and refill math through our Tank Sizing Calculator and the Tank Sizing Guide so working capacity matches your actual batch size rather than the nameplate number. The open top makes manual charging, mixing, and level checks straightforward, and the dished total-drain bottom is the reason to choose this over a flat-bottom open tank when clearing each batch matters. This tank is rated for water and low-specific-gravity service; if you are running anything heavier or chemically aggressive, call us at 866-418-1777 to confirm the specific-gravity rating before you order.
Mounting and support
Because the full-water load lands near 1,251 pounds over a small 30-by-30-inch base, the support surface matters more here than on a wide, low tank. A tall, narrow open-top vessel carries its weight and center of gravity high, so a level, continuously supported pad is the safe way to set it. If you are pouring a foundation, our guide to concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework so the slab is matched to the load.
The mistake to avoid
The biggest error with an open-top total-drain tank is treating it like a sealed process vessel. It is open at the top, so it is not built to hold pressure, pull a vacuum, or contain fumes, and it gives no splash or contamination cover unless you add one. It is also sized for water and low-SG liquids, not heavy or aggressive chemistry, so confirm the specific-gravity rating with us before you put anything denser than water in it. Size any drain fitting and downstream plumbing to how fast you actually need to empty the tank; the exact outlet configuration should be confirmed for your application, and we can walk you through the options by phone.
This Bushman open-top dish-bottom tank ships LTL freight, and freight is quoted separately to your ZIP rather than folded into the list price. Get a live rate with our Freight Cost Estimator, or call 866-418-1777 and we will help you confirm the tank, the drain configuration, and the delivery details before you order. See the technical drawing on this page for the full dimensional layout.
