The Bushman 330 Gallon Dark Brown Rainwater Collection Storage Tank is a vertical polyethylene water storage tank built for rainwater harvesting and general water storage. It holds 330 gallons in a 41-inch diameter (41 x 41 in footprint) and stands 63 inches tall, and the dark brown color helps it blend into a yard or building exterior. If you searched for a water storage tank, a Bushman rainwater tank, or simply a storage tank that fits a tight pad, this is the size that does it without a sprawling footprint.
Will it work for your site?
This tank is rated for a specific gravity of 1.0, which means it is engineered for water and water-density liquids. At 330 gallons it carries a full water weight of 2,752 pounds, which is also its maximum rated contents weight, so plan the pad and any anchoring around that figure. The footprint is 41 x 41 inches and the polyethylene wall handles the static load of a full tank when it sits level and fully supported. Porting is a single 1-inch bulkhead fitting (60427) low on the wall: it seals to the tank wall with its integral gasket and accepts standard 1-inch NPT downstream fittings, so you supply the 1-inch valve or adapter and it is smart to keep a spare gasket on hand for the install. Note that this is the only fitting that ships on the tank, so a top inlet, strainer, or overflow is field-added to suit your system. Reference the technical drawing on this page for the fitting location and exact dimensions, and confirm that 1-inch outlet works with your downstream plumbing before you order valves or hose. To match this 330-gallon size to your roof catchment and demand, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide.
Sizing it into a real rainwater system
A 330-gallon tank is a practical building block for residential and light-commercial rainwater harvesting, and how you stage it matters as much as the tank itself. Our guide on first-flush diverter sizing per the Texas Manual on Rainwater Harvesting walks through keeping the first dirty runoff out of your stored water. If you are setting the tank on a fresh slab, our concrete pad sizing framework covers supporting that 2,752-pound full load, and if you are building toward a larger reuse train, the water reuse tank topology guide shows how rainwater storage fits a banded storage system. For rural fire-protection planning, our fire-water reservoir design guide covers NFPA 22 sizing discipline.
The mistake to avoid
This tank is rated to a specific gravity of 1.0, so keep it on water and water-density liquids. Do not press a 1.0-rated tank into service holding anything heavier than water without stepping up to a higher-SG-rated tank, or you risk over-stressing the wall. The other common miss is underestimating the full weight: 2,752 pounds sitting on an undersized or uneven base is how tanks crack and settle, so get the pad right before the first heavy rain fills it.
This tank ships LTL from our Temecula, CA plant, with freight quoted live to your ZIP. Get your exact number with our Freight Cost Estimator, or call 866-418-1777 and we will quote it for you and help confirm the right size, fittings, and pad before you order.
