The Norwesco 1000 Gallon 45 Degree Cone Bottom Tank (SKU N-43852) is a steep-cone polyethylene tank built for full-drain chemical and process service where you need every gallon to evacuate through the bottom. It stands 89 inches tall on a 72-by-72-inch footprint, holds 1,000 gallons, and carries a 1.5 specific gravity rating, meaning it is rated for liquids up to 1.5 times the weight of water. The 45-degree cone is the reason buyers pick this over a flat-bottom tank: precipitate-forming coagulants like aluminum sulfate and the ferrous and ferric compounds slide toward the outlet instead of caking on the floor, which is what supports full drain-down in chemical service.
Will it work for your application?
Size your load by weight, not just volume. Filled with plain water this cone bottom tank carries 8,340 pounds; loaded to its full 1.5 SG rating it reaches a maximum rated contents weight of 12,510 pounds. That is 4,170 pounds more than water on the same 72-by-72-inch footprint, so size your pad, stand, and support structure to the 12,510-pound worst case rather than the water figure. If you are comparing capacities or working out fill levels and head pressure, the Tank Sizing Calculator and Tank Sizing Guide walk you through it, and the cone-degree tradeoffs (15 vs 30 vs 45) are covered in our Norwesco cone bottom tank buyer's guide. For a full walkthrough of this exact tank, see the 1000 gallon 45 degree cone bottom complete buyer's guide. Dimensions and fitting locations are detailed on the technical drawing on this page.
Chemical compatibility
This is a polyethylene tank with a 1.5 specific gravity rating. Our source data reads the resin as HDLPE but flags it with a question mark, so as a matter of policy we confirm HDLPE versus XLPE construction with you before any chemical goes in it; the resin determines stress-crack and chemical resistance, so call 866-418-1777 and we will verify it. Fittings are spec'd per chemical, not standardized on one material: 316 stainless for DEF, PP or PVC for acetic acid and urea, and PVC for the rest. Always match your fittings and gaskets to the chemical and verify against the OEM chemical-resistance chart for your specific concentration and temperature; the values below are concentration-specific and do not cover every condition.
At its 1.5 SG rating this tank is suited to chemicals including acetic acid (60%, PP or PVC fittings, EPDM gaskets), aluminum sulfate (50%, PVC, EPDM), calcium chloride (40%, PVC, EPDM), DEF / diesel exhaust fluid (32.5%, 316 stainless fittings, EPDM), ferrous sulfate (20%, PVC, EPDM), magnesium chloride (30%, PVC, EPDM), sodium carbonate (30%, PVC, EPDM), urea solution (50%, PP or PVC, EPDM), and ozonated water (up to 10 PPM, PVC, EPDM).
The mistake to avoid
The common error on a cone tank is matching it by volume alone and ignoring specific gravity. This is a 1.5 SG tank, and that is its hard ceiling. Heavier chemicals require a higher-rated 1.9 SG tank, and several common process chemicals fall in that bracket: ethylene glycol, ferric chloride, ferric sulfate, hydrochloric acid (Viton gaskets), hydrofluoric acid (Viton), hydrofluosilicic acid (Viton), hydrogen peroxide (Viton), peracetic acid (316 stainless fittings, Aflas gaskets), phosphoric acid (Viton), polyaluminum chloride, potassium carbonate, potassium hydroxide, propylene glycol (PP/316SS), sodium bisulfate, sodium bisulfite, sodium hypochlorite (Viton), sodium thiosulfate, sulfuric acid (CPVC, Viton), and zinc orthophosphate (PP/316SS). Note the elastomer on that list, not all of it is EPDM; the acids and oxidizers above call for Viton or Aflas, so do not assume one gasket kit covers everything. If your chemical is on that list, this 1.5 SG tank is the wrong choice; call us and we will spec the 1.9 SG version. Cross-check any chemical in our Chemical Compatibility Database.
This tank ships LTL freight from the Norwesco plant in St. Bonifacius, Minnesota, with the rate quoted live to your ZIP code; get your number from the Freight Cost Estimator or call 866-418-1777. We will confirm resin construction, fitting layout, and support requirements with you before the order ships.
3 Year Warranty
