The Snyder Industries 3000 Gallon XLPE Heavy Duty Cone Bottom Tank is a crosslinked-polyethylene cone tank built for full-strength chemical duty — the kind of process and water-treatment chemistry that would soften a standard linear-poly tank. It carries a 1.9 specific-gravity rating, which is what separates this XLPE cone tank from a water-only build. Listed black, 3000 gallon capacity, with a 90 in by 90 in footprint standing 144 in tall.
Will this tank work for your application?
Three numbers decide the install. Filled with plain water this cone tank weighs about 25,020 lb, so the stand and pad have to carry that load before you add anything. The 1.9 SG rating raises the ceiling to roughly 47,538 lb of rated contents — meaning you can run a dense chemistry like ferric chloride or aluminum sulfate up to that weight without exceeding the wall rating, which a 1.0 or 1.5 SG tank could not hold. The cone-bottom geometry drains to a point for full evacuation and sludge-free batches. One common fit at this size and rating is bulk DEF (diesel exhaust fluid, 32.5%) storage — viable here provided every wetted fitting is 316 stainless steel. Factory openings shown on the drawing are:
- Flange
- 18 in PE threaded and vented fitting
- Manway with 15 in access (entry, mixing gear, or top plumbing)
Plan the site for the tank's height: 144 in (12 ft) of vertical clearance plus working room above the top manway for that 15 in access. Confirm the exact bolt pattern and fitting locations against the technical drawing on this page before you finalize stand and pipe routing. For full-water-weight math and stand sizing, run the Tank Sizing Calculator or read the Tank Sizing Guide; the Cone Bottom Tank Stand Compatibility Matrix and the 3000 Gallon Cone Bottom Tank Buyer's Guide cover this exact size.
Chemical compatibility
This is an XLPE (crosslinked) tank rated to 1.9 specific gravity. For where crosslinking earns its keep versus standard HDPE, see Snyder XLPE vs HDPE: When Crosslinking Matters. Verified-compatible chemistries from the OEM chemical-resistance chart include acetic acid (60%), aluminum sulfate (50%), calcium chloride (40%), DEF (32.5%), ethylene glycol (100%), ferric chloride (50%), ferric sulfate (60%), ferrous sulfate (20%), hydrofluosilicic acid (26%), magnesium chloride (30%), polyaluminum chloride, potassium carbonate (50%), potassium hydroxide (saturated), propylene glycol, sodium carbonate (30%), sodium thiosulfate (40%), urea solution (50%), and ozonated water (up to 10 PPM). Fitting and gasket material matters as much as the tank wall. Most of these run PVC fittings with EPDM gaskets as the default — but the exceptions are where installs fail: DEF needs 316 stainless steel hardware, acetic acid and hydrofluosilicic acid want PP or PVC (with hydrofluosilicic acid taking a Viton gasket rather than EPDM), and propylene glycol pairs PP or 316SS with EPDM. Match concentration, fitting material, and gasket against the OEM chart — it is concentration- and temperature-specific — and check the full Chemical Compatibility Database for any chemistry not listed here. Ozonated water is the one entry above without a dedicated database page; confirm it against the chart directly.
The mistake to avoid on a 1.9 SG cone tank
The single most expensive error is the fitting, not the tank. The XLPE wall handles the chemicals above, but a PVC nipple or the wrong gasket on a DEF, hydrofluosilicic acid, or ferric chloride line will fail long before the tank does — leaks at the bulkhead are almost always a material mismatch at the fitting, not a tank defect. Spec 316SS for DEF and a Viton gasket for hydrofluosilicic acid per the chart above. Second: do not assume this cone tank is freestanding — a cone bottom needs a matching steel or poly stand sized to the full 25,020 lb water weight (more with dense chemistry), so size the stand before you order. If your chemistry isn't on the list and needs more margin, that is a conversation worth having before purchase rather than after a wall failure.
This tank ships LTL freight from Snyder's plant in Lincoln, Nebraska, quoted live to your ZIP. Get a freight quote in seconds with the Freight Cost Estimator, or call 866-418-1777 to confirm fittings, stand pairing, and chemical service before you order. If you're weighing single-wall against secondary containment for this duty, the Snyder Captor Plus 110% Containment vs UL-142 comparison is the right next read.
