The Enduraplas 1600 Gallon Black Cone Bottom Tank is a 1,600-gallon polyethylene cone-bottom vessel built for full-drain chemical and process service, rated to a 1.9 specific gravity. The black resin and cone-bottom geometry let you empty thick, settling, or particulate-laden chemistries completely instead of leaving a heel in a flat-bottom tank. Mounted on a matching poly stand, it gives you a gravity-feed, dose, or batch-mix point with a single low outlet.
Will it work for your application?
The tank measures 90 in. wide by 90 in. long with an overall height of 86 in., giving you a 90.0 x 90.0 in. footprint to plan your stand pad and clearance around. Filled with water it carries roughly 13,344 lb, and at its 1.9 SG rating it is engineered to hold up to 25,354 lb of contents - that headroom is what lets it handle dense chemicals like sulfuric acid and ferric chloride rather than water alone. Fitting and outlet locations are not pre-configured in our spec, so confirm port size and placement with us at 866-418-1777 before ordering, and see the technical drawing on this page for cone detail. Because cone-bottom tanks live on a stand, confirm the leg structure and outlet height against your plumbing and containment; the cone bottom tank stand compatibility matrix and the 1600 gallon cone bottom tank with poly stand buyer's guide walk through the pairing. To size your fill volume and weight against your dosing schedule, run the Tank Sizing Calculator or read the Tank Sizing Guide.
Chemical compatibility
This is a black polyethylene tank with a 1.9 specific gravity rating - already the heaviest-rated rating in this size class, so for liquids up to 1.9 specific gravity there is no higher-density step-up needed. The resin shown is HDLPE? - confirm HDLPE vs XLPE with us before committing it to chemical service, since the two crosslink differently and that decision drives long-term resistance. The chemicals below are drawn from the OEM chemical-resistance chart, which is concentration- and temperature-specific; always match your exact concentration and operating temperature to the chart, and pair the listed fitting and gasket materials with each chemistry. One gate to flag before you order fittings: DEF, peracetic acid, propylene glycol, and zinc orthophosphate require 316 stainless wetted parts, and 98% sulfuric acid requires CPVC - a standard PVC fitting kit will not work on those.
Compatible chemistries include Acetic Acid (60%, PP/PVC fittings, EPDM gaskets), Aluminum Sulfate (50%, PVC, EPDM), Calcium Chloride (40%, PVC, EPDM), DEF (32.5%, 316SS, EPDM), Ethylene Glycol (100%, PVC, EPDM), Ferric Chloride (50%, PVC, EPDM), Ferric Sulfate (60%, PVC, EPDM), Ferrous Sulfate (20%, PVC, EPDM), Hydrochloric Acid (37%, PVC, Viton), Hydrofluoric Acid (48%, PP/PVC, Viton), Hydrofluosilicic Acid (26%, PP/PVC, Viton), Hydrogen Peroxide (50%, PVC, Viton), Magnesium Chloride (30%, PVC, EPDM), Peracetic Acid (30%, 316SS, Aflas), Phosphoric Acid (85%, PVC, Viton), Polyaluminum Chloride (PVC, EPDM), Potassium Carbonate (50%, PVC, EPDM), Potassium Hydroxide (saturated, PVC, EPDM), Propylene Glycol (PP/316SS, EPDM), Sodium Bisulfate (PVC/PP, EPDM), Sodium Bisulfite (PVC/PP, EPDM), Sodium Carbonate (30%, PVC, EPDM), Sodium Hypochlorite (under 16.5%, PVC, Viton), Sodium Thiosulfate (40%, PVC, EPDM), Sulfuric Acid (98%, CPVC, Viton), Urea Solution (50%, PP/PVC, EPDM), Zinc Orthophosphate (PP/316SS, EPDM), and Ozonated Water (up to 10 PPM, PVC, EPDM; reference the full database). Browse the full Chemical Compatibility Database to verify your chemistry, concentration, and temperature.
The mistake to avoid
The most common error on a tank like this is under-rating density or mismatching fittings. The 1.9 SG rating is what makes 98% sulfuric acid or 50% ferric chloride viable - drop to a 1.0 or 1.5 SG tank to save money and the wall is no longer engineered for that weight. Just as important, the fitting and gasket material has to match the chemistry: Viton gaskets for the strong oxidizers and acids (sulfuric, phosphoric, peroxide, hypochlorite), EPDM for the salts and glycols, and 316SS or CPVC where called out. A PVC fitting on a chemistry that needs Viton or CPVC is the failure point, not the tank. For monitoring dense or hazardous contents, the tank level gauge selection guide for chemical service compares radar, ultrasonic, hydrostatic, and magnetostrictive options.
This cone bottom tank ships LTL freight, quoted live to your ZIP, from the nearest of our plants in Converse, TX or Neche, ND - Texas and southern buyers ship from Converse, TX, and northern-tier buyers from Neche, ND, with the estimator routing to the nearer plant. Get a real number for your address with the Freight Cost Estimator, or call 866-418-1777 to talk through stand pairing, fitting layout, and chemical service before you order.
