The Snyder Industries 5500 Gallon HDPE Vertical Liquid Storage Tank is a workhorse-scale polyethylene vertical storage tank built for bulk water and high-density liquid duty. It stands 221 inches tall on a square 90 x 90 inch footprint, holds 5,500 gallons, and carries an ASTM-rated polyethylene wall with a 1.9 specific gravity rating - heavy enough to hold contents far denser than water. If you are sizing a vertical storage tank for municipal, agricultural, fire-reserve, or industrial water service, this is the high-capacity end of the Snyder vertical line.
Will it work for your install?
This is a single-color White HDPE vertical tank with a 90 inch diameter and a 221 inch overall height. The 1.9 specific gravity rating is the number that matters most here, and it is easy to under-buy on: it tells you the wall is engineered to safely carry liquids up to 1.9 times the density of water, so the same tank that stores 5,500 gallons of water also handles much denser solutions - concentrated brines and heavier ag or industrial liquids - that a standard 1.0 or 1.5 SG vertical of the same gallonage is simply not rated to hold. Buying the right SG up front means you do not have to step up a size or rebuy later for density headroom. Full of water the tank weighs roughly 45,870 lb, and at its maximum rated contents it is engineered to carry about 87,153 lb - those are the two numbers your pad and foundation work has to be designed around, not the tank's empty shipping weight. Run your fill scenario through the Tank Sizing Calculator and confirm your pad against the Tank Sizing Guide before you commit footprint and elevation.
Fittings, access, and clearance
Per the technical drawing on this page, the tank is configured with a manway with 15 inch access, an 18 inch PE threaded/vented fitting, a flange, a fitting flat at 272.5 degrees, and a S.U.M.O./fitting provision. The 15 inch manway gives you interior reach for cleaning and inspection - plan roughly 19-plus feet of overhead clearance above the pad for the 221-inch tank plus manway access and any fill plumbing on top. The fitting flat at 272.5 degrees establishes a true mounting plane on the otherwise round body for adding bulkhead fittings or instrumentation. When you order valves and bulkhead fittings, match thread or flange type and gasket material to each port - the 18-inch PE threaded port, the flange, and the bulkhead locations on the fitting flat each take different hardware. Bring your fitting and gasket list to us at 866-418-1777 and we will confirm everything against the drawing before you buy.
Usable volume and freight
One sizing note worth getting right: the nominal 5,500 gallons is the tank rating, but ASTM D1998 freeboard and thermal-expansion allowance mean your actual usable working volume is slightly less - size to your real draw, not the nameplate, and see our Snyder freeboard sizing guide for the math. This vertical tank is fabricated at Snyder's plant in Lincoln, Nebraska and ships LTL, quoted live to your ZIP. A tank this tall and heavy moves as a dedicated freight item, so get a firm number before you finalize the buy - use the Freight Cost Estimator for a freight quote to your ZIP. The mistake to avoid on a tank this size is foundation under-design: plan your concrete pad and anchoring around the full and max-rated contents weights above, not the empty tank, and review the load path against our concrete pad sizing framework. For long-term durability on a vapor-exposed vertical, the ASTM D1998 wall-thickness and headspace guide is worth a read, and if this is destined for rural fire-water service, see our fire-water reservoir design guide. Questions on configuration or freight? Call 866-418-1777.
