The Snyder Industries 330 Gallon Black Heavy Duty Vertical Storage Tank is a polyethylene vertical storage tank built for serious bulk water work where standing volume and a stable base matter. Filled with water it carries 2,752 lb of contents, and it is rated to hold up to 5,229 lb at its 1.9 specific gravity rating, so it has real headroom for heavier-than-water service. The footprint is 47 inches square with a 50-inch overall height, giving you a compact, broad-shouldered profile that sits steady on a flat, fully supported pad rather than sprawling across your site.
Will it work for your site?
This is a 330 gallon black vertical tank molded in heavy-duty polyethylene. The black resin blocks light, which discourages algae growth in stored water, making it a sound pick for outdoor water reservoirs, rainwater holding, irrigation supply, and general industrial water storage. The 1.9 specific gravity rating means the wall is built to hold contents denser than plain water, so this tank is not limited to fresh water alone. Before you set it, verify the key numbers against your site:
- Capacity: 330 gallons
- Footprint: 47" x 47"
- Overall height: 50"
- Load: 2,752 lb full of water, up to 5,229 lb at the 1.9 SG rating
- Material: heavy-duty polyethylene, black
Check the 47 x 47-inch footprint against your pad and the 50-inch height against any overhead clearance, doorways, or low roof lines before delivery. See the technical drawing on this page for the full dimensional layout.
Sizing and outfitting it right the first time
A full tank is a structural load, not just a water volume. At 2,752 lb full of water and up to 5,229 lb at the rated specific gravity, this vertical storage tank needs a pad engineered to carry the load over the entire base, never on point supports or partial bearing. If you are confirming whether 330 gallons fits your draw-down and refill cycle, run the numbers through our Tank Sizing Calculator and read the Tank Sizing Guide. For pad construction, our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework. If this tank is feeding a private fire-protection or rural reservoir setup, our fire-water reservoir design guide covers NFPA 22 sizing discipline and cold-climate freeze protection. For grey-water, rainwater, or HVAC condensate aggregation, see our industrial water reuse tank topology guide. On fittings: this listing has no outlet, bulkhead, or gasket configuration confirmed in our data, so confirm placement and sizes with us at 866-418-1777 before ordering, and the tank can arrive plumbed for your line.
The mistake to avoid
The most common error with a heavy vertical storage tank this size is treating the specific gravity rating as a license to ignore the pad. The 1.9 rating tells you the wall can handle dense contents, but the full 5,229 lb still has to land on a flat, level, fully supporting surface. Setting one of these on gravel, soft ground, uneven blocking, or a partial slab is how vertical tanks crack and lean. Pour or pour-verify a flat pad that carries the entire footprint before the tank ever sees liquid. If you are weighing single- versus double-wall containment for a dense service at this SG, our Snyder Captor double-wall freeboard sizing guide covers the freeboard and ASTM D1998 considerations.
This tank ships LTL freight from the Snyder plant in Chowchilla, CA, with the cost quoted live to your ZIP code. Because it leaves a single California origin, distance drives the LTL rate, so buyers outside the West should pull a number before ordering rather than after. Get yours from our Freight Cost Estimator or call us at 866-418-1777 and we will quote it for you. Have your delivery ZIP and any access limitations ready so we can get you an accurate LTL rate the first time.
