The Snyder Industries 6000 Gallon HDPE Vertical Liquid Storage Tank is a free-standing, white polyethylene vertical storage tank built to ASTM standards and rated to a 1.9 specific gravity, the high end of what a polyethylene tank carries before you have to step up to a different construction. At 188 inches tall on a 102 by 102 inch footprint, this vertical tank holds 6,000 gallons of liquid in a single column, and the 1.9 SG rating is the number that separates this build from a standard 1.5 SG water tank: it is engineered to hold heavier liquids without overstressing the lower wall.
Will it work for your liquid?
Full of plain water this HDPE storage tank carries roughly 50,040 lb of contents, and at its 1.9 specific-gravity rating it is built to hold up to 95,076 lb of liquid. That spread matters when you size the pad and anchoring: a 102 by 102 inch footprint puts a fully loaded heavy-liquid tank on the slab at close to 95,000 lb, so the foundation and any tie-downs have to be designed for the actual density of what you are storing, not for water. The tank also stands 188 inches - about 15.7 feet - so before you order, verify door and ceiling clearance for the height and confirm the 15-inch manway access is reachable for inspection at that elevation, with a ladder or platform if needed. If you are sizing for a specific volume or duty, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide before you commit to a footprint, and our guide on HDPE tank wall thickness at the vapor-saturated headspace covers the ASTM D1998 wall-thickness logic and where these tanks actually wear.
Fittings, access, and venting
This vertical storage tank comes configured with a flange, an 18-inch PE threaded and vented fitting, two 12-inch by 23-inch fittings (one flat), and a manway with a 15-inch access opening for inspection and interior service. The exact fitting positions, sizes, and elevations are called out on the technical drawing on this page, so confirm your inlet, outlet, and vent locations against that drawing before plumbing the tank. Two points to plan for at this size: first, the wetted seals - the manway gasket, the threaded fitting's seal, and any flange gasket - are the parts that actually contact your stored liquid, so match those gasket and seal materials to the liquid, not just the HDPE shell. Second, that 18-inch fitting is vented for a reason: the tank fills and draws down, and the vent must stay clear so the tank can breathe - a blocked or undersized vent can balloon or collapse a poly tank during a fast fill or draw. If this is part of a private fire-protection or rural water-storage stack, our fire-water reservoir tank design guide walks through NFPA 22 sizing and freeze protection, and the 6000 gallon vertical liquid storage tank buyer's guide covers the full selection picture.
The mistake to avoid
The number to respect on this tank is the 1.9 specific-gravity rating. People buy a vertical storage tank on gallons alone and forget that density drives the load: the same 6,000-gallon shell holds 50,040 lb of water but is rated to 95,076 lb of denser liquid. Do not assume the higher rating lets you ignore the foundation - it does the opposite. Match the pad, anchoring, and any secondary containment to the real weight of your stored liquid, and verify the manway and fitting layout supports the way you intend to fill, vent, and draw down. A 1.9 SG rating is the top of the standard polyethylene range, which makes this the heavy-liquid build rather than a basic 1.5 SG water tank - you are already at the ceiling. If your liquid runs denser than 1.9 SG, this shell is no longer the right tank; call 866-418-1777 before you order so we can confirm the right construction for your service.
This Snyder HDPE vertical tank ships LTL freight, palletized and quoted live to your ZIP code from the nearest of Snyder's plants - Chowchilla, CA; Lincoln, NE; or Philippi, WV. A 6,000-gallon shell is freight-sensitive, and which plant your tank ships from can swing the quote materially by region, so run your ZIP through our Freight Cost Estimator to see the real number for your location, or call 866-418-1777 and we will quote it for you and confirm the fitting configuration before your tank ships.
