The Bushman 3000 Gallon Green Rainwater Collection Storage Tank is a 3,000-gallon above-ground polyethylene tank built for serious rainwater harvesting and bulk water storage. It stands 113 inches tall on a 96 x 96 inch footprint, and its dark green color blends into outdoor and landscaped sites while shielding stored water from light to help limit algae growth. If you are sizing for rainwater capture, a fire-water reserve, or general water storage, this page gives you the working numbers to get the pad and freight right before anything ships.
Will this tank work for your site?
This is a water-service tank rated at a 1.0 specific gravity, which means it is engineered for water-weight contents only. Filled to 3,000 gallons it carries roughly 25,020 lb of water, which is also its maximum rated contents weight. That 1.0 SG rating is a hard limit, not a suggestion: this tank is not suitable for liquids heavier than water. If you need to store anything denser, select a higher-SG-rated tank, and call 866-418-1777 if you want help matching the right one. For water, the full-water load is the number that drives your foundation. Spread across the 96 x 96 inch footprint, 25,020 lb works out to roughly 390 lb per square foot of bearing pressure, a figure you can hand directly to whoever pours the pad. Our Tank Sizing Calculator and Tank Sizing Guide help you confirm capacity against your rainfall and demand, and the concrete pad sizing guide walks through supporting a load this size under the ACI 360R-10 framework.
Fittings and connections
Per the technical drawing on this page, this tank comes configured with multiple flat fitting locations sized at 12" x 14", 8" x 14", and 12" x 24", plus a matched 4-inch outlet and overflow kit and a 1-inch bulkhead fitting with PP/EPDM hardware. That matched outlet-and-overflow kit means you are not sourcing mismatched parts for the two connections that matter most on a collection tank, and the PP/EPDM gasket on the 1-inch bulkhead is a water-compatible elastomer. Review the technical drawing on this page to confirm fitting placement and orientation against your inlet, outlet, and overflow plumbing before you set the tank, since a rainwater tank spends much of the year managing excess flow during heavy rain events.
The mistake to avoid
The most common error with a tank this size is underbuilding the foundation. At about 25,020 lb full and roughly 390 lb per square foot, a settling, undersized, or unlevel pad will stress the tank wall and fittings over time. The second mistake is treating overflow as an afterthought. Connect the tank's 4-inch overflow kit into a planned, clear overflow path and pair it with proper first-flush diversion, both designed before the tank arrives. The Bushman rainwater harvesting first-flush guide covers diverter sizing per the Texas Manual on Rainwater Harvesting and ties directly to the on-tank overflow hardware. If this tank is headed into a fire-water or reuse role, see our fire-water reservoir design guide, which also covers freeze-protection engineering for cold-climate service worth planning before winter, and the industrial water reuse topology guide.
This rainwater storage tank ships LTL freight from the plant in Fairfield, TX, with freight quoted live to your delivery ZIP. Get a real number with our Freight Cost Estimator or call 866-418-1777, and we will quote freight to your site and help you confirm the right water storage tank for the job.
