3000 Gallon 30 Degree HDPE Cone Bottom Tank in White

The 3000 Gallon 30 Degree HDPE Cone Bottom Tank from Snyder Industries is a 3000-gallon white polyethylene cone bottom tank built for full-drain chemical and process service. It stands 144 inches tall on a 90 x 90 inch footprint and carries a 1.9 specific gravity rating, meaning it is engineered to hold contents up to 1.9 times the weight of water. That 1.9 rating is the top of the range for tanks like this, so most aggressive chemistries that fit a cone bottom tank will fit inside its weight ceiling. The 30 degree cone bottom lets viscous and settling fluids drain completely, which is why this is one of the most requested cone bottom tank configurations for batching, dosing, and storage.

Will it work for your application?

Filled with water this tank weighs about 25,020 lbs, and at its full 1.9 SG rating the contents alone can reach 47,538 lbs, so plan your pad, saddle stand, and anchoring around the heaviest fluid you intend to store. Run those numbers against your own load before you pour a foundation; the Tank Sizing Calculator and the Tank Sizing Guide walk through capacity, weight, and stand sizing. The tank comes configured with a flange, an 18 inch PE threaded and vented fitting, and a manway with 15 inch access. The vented 18 inch fitting is your route for relieving pressure on chemistries that off-gas or fume, and the 15 inch manway is the access point for gauging, fill, and cleanout, so plan your instrumentation around that opening. Confirm the fitting locations and the cone geometry against the technical drawing on this page before you set valves and piping. For a deeper walkthrough of cone angle selection, see our cone bottom tank buyer's guide on 15 vs 30 vs 45 degree selection and the 3000 gallon 15 degree cone bottom guide.

Chemical compatibility

This is a polyethylene tank with a 1.9 specific gravity rating. The resin is identified as HDLPE pending confirmation, so call us to confirm HDLPE versus XLPE construction before committing it to aggressive chemical service, since crosslinked polyethylene handles certain chemistries differently. Always size fittings and gaskets to the chemical, not just to the tank. Compatible chemistries from the OEM chemical-resistance chart, which is concentration and temperature specific, include: Acetic Acid (60%, PP/PVC fittings, EPDM gasket), Aluminum Sulfate (50%, PVC, EPDM), Calcium Chloride (40%, PVC, EPDM), DEF (diesel exhaust fluid, 32.5%, 316SS fittings, 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). Verify your exact concentration and temperature against the OEM chart, and browse the full Chemical Compatibility Database before ordering.

The mistake to avoid

The most common error on a tank like this is matching fittings and gaskets to the tank shell instead of to the chemical. The 1.9 SG rating tells you the wall can carry a heavy fluid, but it says nothing about which gasket survives that fluid. Watch how the wetted materials shift across this chart: sodium hypochlorite, hydrochloric, phosphoric, and sulfuric acid all call for Viton, while most salts and glycols run on EPDM. Two chemistries break the pattern entirely. DEF requires a 316SS stainless fitting body rather than PVC, and peracetic acid is the single most demanding combination in the chart, pairing 316SS fittings with an Aflas gasket. Sulfuric at 98 percent even moves the fitting body to CPVC. Spec the wetted materials to your exact chemical, and resolve the HDLPE versus XLPE question first if you are storing anything aggressive.

This tank ships LTL freight from the Snyder Industries plant in Lincoln, Nebraska, quoted live to your ZIP code. Get a freight estimate with the Freight Cost Estimator, or call 866-418-1777 to confirm fittings, the HDLPE versus XLPE question, and freight before you order.