The Snyder Industries 8700 Gallon XLPE Vertical Double Wall Liquid Chemical Storage Tank is a cross-linked polyethylene vertical storage tank rated to a 1.5 specific gravity, built for outdoor secondary-contained chemical service. Its white double-wall body stands 197 inches tall on a 142 x 142 inch footprint, putting a primary tank inside an integral outer containment shell so a primary breach is caught without a separate berm. This is the size you reach for when a single large bulk volume of vertical XLPE storage has to stay contained on a finite pad.
Will this tank work for my application?
The primary holds 8,700 gallons. At plain water it carries about 72,558 lb of contents; loaded to its full 1.5 SG rating it is engineered to carry up to 108,837 lb of liquid. That 108,837 lb is the design ceiling at full 1.5 SG, so design the pad and any ring wall for that mass plus the empty tank — though your actual load scales with your chemical's density, so compute the real number for your product rather than assuming the worst case. The 142 x 142 inch footprint is your siting constraint at 197 inches of height. Confirm your product's specific gravity against the 1.5 rating before you commit; this double wall tank at this SG is sized for moderately dense chemistry, not the heaviest brines and acids. Factory fittings include a flange, an 18-inch threaded and vented connection, and a manway with a 15-inch access opening for entry and service. Review the technical drawing on this page for exact fitting placement and elevations, and use our Tank Sizing Calculator and Tank Sizing Guide to match working volume and freeboard to your draw and fill rate.
Chemical compatibility
This is an XLPE tank rated to 1.5 specific gravity. Because cross-linked polyethylene cannot be re-melted, every fitting and gasket choice matters; match wetted components to your chemical, not just the tank shell. The chemicals below are compatible with a 1.5 SG XLPE tank at the listed concentration when paired with the indicated materials. Two exceptions are worth flagging up front: DEF is the only baseline chemical here requiring 316SS fittings rather than PVC or PP, and every baseline item runs EPDM gaskets. Verify every selection against the OEM chemical-resistance chart, which is concentration- and temperature-specific, and against our Chemical Compatibility Database.
- Acetic Acid at 60% — PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate at 50% — PVC fittings, EPDM gaskets
- Calcium Chloride at 40% — PVC fittings, EPDM gaskets
- DEF at 32.5% — 316SS fittings, EPDM gaskets
- Ferrous Sulfate at 20% — PVC fittings, EPDM gaskets
- Magnesium Chloride at 30% — PVC fittings, EPDM gaskets
- Sodium Carbonate at 30% — PVC fittings, EPDM gaskets
- Urea Solution at 50% — PP/PVC fittings, EPDM gaskets
- Ozonated Water up to 10 PPM — PVC fittings, EPDM gaskets. This is an oxidizer, so the 10 PPM ceiling is the governing limit; hold concentration at or below it.
The mistake to avoid: do not store a denser chemical in this 1.5 SG tank. Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrofluosilicic Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, and Sodium Thiosulfate are all storable in XLPE but require a higher 1.9 SG tank, not this one — if you run any of them, step up to the 1.9 SG rating. One further exception: Hydrofluosilicic Acid also calls for Viton gaskets rather than EPDM.
Freight and ordering
This Snyder Industries tank ships LTL from Lincoln, Nebraska. Because of its size and weight, freight is quoted live to your delivery ZIP rather than included in the list price — get your number with our Freight Cost Estimator or by calling 866-418-1777. Before you finalize, two resources are worth reading for a tank this size in double-wall service: our walkthrough on Snyder Captor double-wall tanks for SPCC 40 CFR 112 compliance and the guide on double-wall freeboard sizing per ASTM D1998, which explains how much of the 8,700 gallons you can actually use. For instrumentation, see our notes on level gauge selection for chemical service and high-level alarm and spillover redundancy design. Call 866-418-1777 to confirm fitting configuration and lead time before you order.
