The Snyder Industries 550 Gallon Vertical Water Storage Tank in green is a high-density linear polyethylene (HDLPE) tank built for above-ground bulk water storage, holding 550 gallons in a compact 64-inch square footprint at 48 inches tall. It carries a 1.0 specific gravity rating, which matches fresh water exactly, so this tank is sized and rated for water service and similar 1.0-SG contents. If you need a vertical storage tank for water storage, rural fire-water reserve, rainwater capture, irrigation, or industrial water reuse, the spec set on this page tells you what you're getting before you buy. One detail to set expectations up front: every one of these tanks ships from a single plant in Merced, California, so freight cost and transit time scale with distance, especially for East Coast sites.
Will it work for your site?
Footprint is 64.0 x 64.0 inches with a 48-inch height, so it fits low-clearance buildings, equipment sheds, and pump houses where a taller vertical tank won't clear the ceiling or doorway. Filled to capacity, the full water weight is 4,587 pounds, and the maximum rated contents weight is also 4,587 pounds at 1.0 SG. That number drives your pad: 4,587 pounds spread over a 64 x 64 footprint works out to roughly 1.1 pounds per square inch, or about 161 pounds per square foot of distributed load, so plan the slab accordingly and confirm point-loading at the chime with a proper pad design. Our Concrete Pad Sizing for Above-Ground Polyethylene Tanks guide walks the ACI 360R-10 framework for getting that foundation right, and the Tank Sizing Calculator plus Tank Sizing Guide help you confirm 550 gallons is the right volume for your draw-down and refill cycle.
Fittings, venting, and access
The fitting layout, per the technical drawing on this page, includes a 16-inch x 15.75-inch fitting as the largest top penetration, a 1-1/2-inch polypropylene Eco bulkhead fitting with EPDM gasket, and a 2-inch standard polypropylene bulkhead fitting with EPDM seal. Access is through an 18-inch polyethylene manway assembly with a 4-inch vent and tie-down. That 4-inch vent sets your gravity fill and drain venting capacity, so size your overflow and inlet to it: fill or draw faster than the vent can pass air and you risk pressurizing or pulling a vacuum on the tank. The PP bulkheads with EPDM seals are matched to water and 1.0-SG service; if your contents are aggressive to EPDM, request an alternate gasket material before ordering. See the technical drawing on this page for exact fitting placement and elevations before you plumb your inlet, outlet, and overflow lines.
Before a new install
The most common mistake on a tank this size is skipping the fill-and-hold check before you commit the install. Polyethylene tanks settle their pad and reveal any fitting seep only under real hydrostatic load, so fill with water, monitor pad settlement, and watch every bulkhead before you backfill or button up the connections. Our Hydrostatic Test Methodology guide lays out the water-fill discipline, settlement monitoring, and hold-time math for clean acceptance. One boundary to respect: this tank is rated to 1.0 SG, which means it is built for water-weight contents only, not for heavier-than-water chemistries like acids, brines, or concentrated fertilizers. If you need to store something denser than water, call 866-418-1777 and we will match you to an SG-rated tank rather than overload this one. If this tank feeds a rural fire reserve, the Fire-Water Reservoir Tank Design guide covers NFPA 22 sizing and cold-climate freeze protection; for grey-water, rainwater, or HVAC-condensate aggregation, see our Industrial Water Reuse Tank Topology guide.
This tank ships LTL freight from the Snyder plant in Merced, California, and freight is quoted live to your ZIP code. Get an estimate with our Freight Cost Estimator, or call 866-418-1777 to lock in your order and confirm transit time. Listed before freight, with the quote built to your exact delivery address.
