The Snyder Industries 330 Gallon Open Top Batch Storage Tank (SKU SII-57500VOT-45) is a white cylindrical polyethylene tank built for batch mixing, dosing, and open-access bulk water storage where you need to add product, agitate, or check levels from the top. It stands 63 inches tall on a 42-by-42-inch footprint, so it fits a tight pad while still holding 330 gallons. This Snyder open top tank carries a 1.9 specific gravity rating, which is unusually high for an open top vessel and tells you the shell and floor are built to support dense contents, not just water.
Will it work for your application?
Two numbers decide your install: weight and footprint. Filled with water at full volume this open top tank carries roughly 2,752 pounds, and at its full 1.9 SG rating the structure is engineered to hold up to about 5,229 pounds of contents. The 1.9 SG rating is the standout fact here: where a standard 1.0 to 1.5 SG open-top would be underbuilt, this one is the right choice for denser batch chemistry up to 1.9 SG, and that 5,229 lb max-contents figure is exactly what you are paying for when you step up to the heavier rating. Note that the rated structural weight is what drives usable versus nominal volume on dense fills, since dense contents and thermal expansion eat into freeboard; our freeboard sizing guide per ASTM D1998 walks through how density changes the volume you can actually use. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm 330 gallons matches your draw-down and refill cycle before you commit.
Open top tanks, fittings, and the mistake to avoid
The most common error with an open top storage tank is treating it like a closed tank. Open top means open access for filling, mixing, and cleaning, but it also means no sealed lid keeping out dust, rain, insects, or evaporation; if your water needs to stay covered, plan a separate cover or a closed-top tank from the start. Confirm the outlet configuration before you order: verify with us whether this unit ships with a bottom outlet or as a blind tank, because any plumbed drain needs a properly gasketed bulkhead fitting installed in supported material. Where you do plumb an outlet, the bulkhead gasket elastomer (EPDM, Viton, or Buna) must be matched to the stored fluid independently of the polyethylene shell, since gaskets are the most common compatibility miss on batch tanks. And remember that the 1.9 SG rating describes what the shell can structurally support, not a chemical approval; polyethylene resistance depends on the specific chemical, its concentration, and temperature, so for anything beyond water verify the contents against the manufacturer's chemical-resistance data first.
Base preparation
An open top tank needs a flat, fully supported, level base across the entire bottom. Size that base to the full-rated load: about 5,229 pounds spread over the 42-by-42-inch footprint puts real bearing pressure on your pad, so it has to carry the heavier figure rather than the water-only weight if you store anything denser than water. Our concrete pad sizing framework under ACI 360R-10 covers how to spec the slab, and the fire-water reservoir tank design guide helps if this storage tank is part of a larger reservoir system.
This white open top tank ships LTL freight from the Snyder plant in Marked Tree, AR, with freight quoted live to your ZIP code rather than baked into the listed price. Because it is a tall, high-cube unit, freight cost is driven mostly by distance and dimensions, so pull an exact number from the Freight Cost Estimator before you order. Questions on whether this is the right open top tank for your batch process, or on outlet provisioning? Call 866-418-1777 and we will help you size and ship it.
