The Enduraplas 1600 Gallon White Horizontal Sump Bottom Leg Tank (SKU THD01600W) is a polyethylene transport and storage tank built for hauling on a trailer or skid frame. It measures 130 inches long by 71 inches wide by 59 inches tall, with a 71.0 x 130.0 inch footprint and a low center of gravity that suits the horizontal leg-tank format. The integral legs cradle the body so it sits flat and stable, while the sump bottom drains toward a single low point so you can pull product down without leaving a heel in the tank.
Will it work for your job
This tank carries a 1.9 specific gravity rating, which is what makes it a serious chemical hauler rather than a water-only vessel. Filled with plain water (SG 1.0) it holds 13,344 pounds of contents; at its full 1.9 SG rating it is built for up to 25,354 pounds of contents. Use both figures to size your trailer, axles, and tie-downs before you load, because the gap between a water fill and a dense-chemical fill is enormous on a tank this size: even a heavy fertilizer or brine blend in the 1.5 to 1.6 SG range still lands well under the 25,354-pound cap, so this tank can usually be run full on those loads. When you are matching the tank to your liquid and your equipment rating, the Tank Sizing Calculator and the Tank Sizing Guide walk you through fill weight against your trailer. If you run a fertilizer-blend program, the guide on tank stratification and mixing protocol covers the density-driven layering you have to manage in a horizontal hauler, while the guides on applicator and leg tanks for fertilizer and portable utility tanks and the 49 CFR agricultural exemption explain how DOT classification applies. Fitting and outlet sizes are not yet listed for this tank; confirm the exact fitting and outlet layout with us at 866-418-1777 before you plumb it.
Chemical compatibility
This is a 1.9 specific-gravity polyethylene tank. The resin grade reads HDLPE on our records but is unconfirmed, so confirm HDLPE versus crosslinked (XLPE) with us at 866-418-1777 before you commit it to any chemical service, since the resin determines what it can safely hold (it matters most in oxidizer service such as ozonated water). With the right fittings and gaskets, this tank handles a broad list of fertilizer and water-treatment chemicals: Acetic Acid at 60% (PP/PVC fittings, EPDM gaskets), Aluminum Sulfate at 50% (PVC, EPDM), Calcium Chloride at 40% (PVC, EPDM), DEF at 32.5% (316SS, EPDM), Ethylene Glycol at 100% (PVC, EPDM), Ferric Chloride at 50% (PVC, EPDM), Ferric Sulfate at 60% (PVC, EPDM), Ferrous Sulfate at 20% (PVC, EPDM), Hydrochloric Acid at 37% (PVC, Viton), Hydrofluoric Acid at 48% (PP/PVC, Viton), Hydrofluosilicic Acid at 26% (PP/PVC, Viton), Hydrogen Peroxide at 50% (PVC, Viton), Magnesium Chloride at 30% (PVC, EPDM), Peracetic Acid at 30% (316SS, Aflas), Phosphoric Acid at 85% (PVC, Viton), Polyaluminum Chloride (PVC, EPDM), Potassium Carbonate at 50% (PVC, EPDM), Potassium Hydroxide saturated (PVC, EPDM), Propylene Glycol (PP/316SS, EPDM), Sodium Bisulfate and Sodium Bisulfite (PVC/PP, EPDM), Sodium Carbonate at 30% (PVC, EPDM), Sodium Hypochlorite up to 16.5% (PVC, Viton), Sodium Thiosulfate at 40% (PVC, EPDM), Sulfuric Acid at 98% (CPVC, Viton), Urea Solution at 50% (PP/PVC, EPDM), Zinc Orthophosphate (PP/316SS, EPDM), and Ozonated Water up to 10 PPM (PVC, EPDM). Match your fitting and gasket material to the chemical exactly as listed, and verify against the manufacturer's chemical-resistance chart at your specific concentration and temperature, because those values are concentration- and temperature-dependent. Start at our chemical compatibility reference, then drill into the specific liquid: sulfuric acid, sodium hypochlorite, hydrochloric acid, DEF, phosphoric acid, urea solution, and the others linked above.
The mistake to avoid
The single most common error on a tank this size is loading a dense chemical against a water-weight assumption. A 1600-gallon fill of plain water is 13,344 pounds, but the same tank at its 1.9 SG rating carries up to 25,354 pounds, nearly twice the load. Spec your trailer, axle rating, and frame to the loaded weight of YOUR liquid, not water, and never exceed the 1.9 SG rating. The second trap is the fittings and gaskets: an EPDM gasket that is correct for a fertilizer salt will fail in sulfuric acid, which needs Viton and CPVC. Match the hardware to the chemical, every time.
This tank ships LTL freight from the Enduraplas plant in Neche, ND, and freight is quoted live to your ZIP code. Get your number with the Freight Cost Estimator or call us at 866-418-1777. If you have been searching for an Enduraplas horizontal sump leg tank for haul service, this is the 1600-gallon size.
