The Snyder Industries 8000 Gallon HDPE Vertical Liquid Storage Tank is a Chowchilla, California-built polyethylene vertical tank standing 186 inches tall on a 120 x 120 inch footprint, carrying an ASTM-grade 1.9 specific gravity rating that gives you real headroom for liquids heavier than water. If you are sizing a large bulk water reservoir, fire-water storage, or any high-volume vertical storage tank where wall strength and a verified SG rating matter, this is the tank built to carry it.
Will it work for your install
This vertical storage tank holds 8000 gallons in white HDPE. Plan your pad and foundation around real loaded weight, not nameplate volume: full of water it carries 66,720 pounds, and at its maximum 1.9 SG rating it is engineered to hold up to 126,768 pounds of contents. Your pad must span the full 120 x 120 inch (10 x 10 ft) footprint and carry that 126,768-pound max load. That 1.9 SG rating is the headline spec: most water service never approaches it, but if your service might ever shift to brine, fertilizer, or another liquid heavier than water, the 1.9 rating is why you buy this tank instead of a standard water-only vessel — no de-rating, no tank swap later. For sizing, run your numbers through the Tank Sizing Calculator and review the Tank Sizing Guide before you pour, then see Concrete Pad Sizing for Above-Ground Polyethylene Tanks for the ACI 360R-10 framework and the ACI 318 boundary behind a slab this heavy.
Fittings and access
Access and outlet are factory-configured: a flange, an 18 inch PE threaded and vented fitting, and a manway with 15 inch access. The flange and the 18 inch PE threaded/vented fitting are your two plumbing connection points — none of the mating gaskets, bulkhead hardware, or connection fittings ship with the tank, so spec those against the technical drawing on this page before you order. The 15-inch manway access is your limiting dimension for interior entry, cleaning, and inspection: verify it clears any inspection or cleaning rig you plan to run inside. Confirm the exact port locations and elevations on the drawing too, since fitting placement on a 186 inch tall vertical tank drives your pump and riser layout.
The mistake to avoid
On a tank this tall, the failure point operators miss is the vapor-saturated headspace near the top of the wall, where thinning originates and routine liquid-side inspection does not catch it. Read HDPE Tank Wall Thickness at the Vapor-Saturated Headspace for the ASTM D1998 sizing logic behind it. If this is fire-water duty, the Fire-Water Reservoir Tank Design guide covers NFPA 22 sizing discipline and cold-climate freeze protection for remote sites.
This 8000 gallon Snyder vertical ships LTL from the Chowchilla, California plant, quoted live to your ZIP. Built on the West Coast, it ships shorter LTL lanes to West Coast and Southwest destinations — run your ZIP through the Freight Cost Estimator to see your number, or call 866-418-1777 to confirm offload requirements for a tank of this size and weight.
