Snyder Industries 1100 Gallon HDPE Vertical Liquid Storage Tank with ASTM Certification

The Snyder Industries 1100 Gallon HDPE vertical liquid storage tank is rotationally molded in white polyethylene and rated to a 1.9 specific gravity, which is the spec that separates it from a basic water-only tank. At 1.9 SG it handles liquids substantially heavier than water - brine and many fertilizer solutions - without de-rating, so even for straight water storage you are buying real wall headroom. If you are sizing a vertical storage tank for a barn, pump house, fire reserve, or process feed, here is what actually matters before you buy.

Will it work for your site?

Full of water this tank weighs roughly 9,174 lb, and at its maximum rated contents weight it carries up to 17,431 lb. Plan the pad accordingly: a footprint loaded to over 8.5 tons needs a level, engineered, reinforced concrete base, not bare gravel. An off-level base puts uneven hoop stress on the wall and shortens tank life. Confirm your fill height and total filled weight against your foundation before delivery. Our Tank Sizing Calculator and Tank Sizing Guide walk through volume, weight, and footprint so you order the right capacity the first time.

Fittings and access

This tank is configured with a flange, an 18" PE threaded and vented top fitting, a manway with 15" access, a 15" x 15" fitting, and a flat fitting location molded into the wall. The vented top fitting matters - gravity-fill and pumped systems both need the headspace to breathe. Note that a 15" access opening is a hand-and-tool opening for inspection and cleaning, not a personnel-entry manway, so plan on wand or CIP cleaning rather than man-entry. HDPE-threaded and bulkhead fittings seal on a gasket, so verify the gasket elastomer (EPDM, Viton, or Buna) suits your stored liquid and do not over-torque the PE threads. For exact fitting positions, outlet heights, and thread types, see the technical drawing on this page and match it to your plumbing before you set the tank. Because vapor-side wall stress is where many HDPE tanks fail first, our guide on HDPE tank wall thickness at the vapor-saturated headspace is worth reading for a long-service install.

The mistake to avoid

The most common error on a tank this size is undersizing the foundation and the top fitting. At over 17,000 lb max rated weight, a poured, reinforced, dead-level pad is non-negotiable. Second, never plumb a closed top fitting without keeping the vented 18" PE fitting open to atmosphere, or you risk pulling a vacuum and collapsing the wall during fast draw-down. If you are spec'ing this as a fire-water reserve, our fire-water reservoir design guide covers NFPA 22 sizing and freeze protection for cold-climate sites.

This tank ships LTL freight, quoted live to your ZIP, from the nearest stocking plant among Chowchilla, CA; Lincoln, NE; and Philippi, WV - the nearest origin is what drives your rate. Get a real number with our Freight Cost Estimator, or call 866-418-1777 and we will quote the freight and confirm the fitting configuration before you order. For a deeper look at this exact size, see our 1100 gallon vertical liquid storage tank buyer's guide.