The Bushman 5000 Gallon Black Rainwater Collection Tank is a polyethylene rainwater tank built for serious rainwater harvesting, fire-water reserve, and bulk water storage where a 5,000-gallon footprint makes sense. It stands 92 inches tall on a 140 x 140 inch footprint, holds 5,000 gallons, and is molded in black to keep light out and algae growth down. The specific gravity rating is 1.0, which matches plain water exactly, so this 5000 gallon black water tank is rated for water-weight contents like rainwater and grey water, not chemicals heavier than water.
Does it work for your site?
Filled to capacity, this tank carries 41,700 pounds of water. Plan the pad for that load before delivery, not after, because the slab and the soil beneath it both have to be rated for roughly 41,700 pounds of standing contents. Our concrete pad sizing guide walks through the ACI 360R-10 framework and the ACI 318 boundary so the foundation is engineered, not guessed. Run the numbers for your exact site with the Tank Sizing Calculator, and if you are deciding between sizes, the Tank Sizing Guide covers the trade-offs.
Fittings and connections
This tank comes configured for real plumbing. Per the technical drawing on this page, it ships with a 4-inch outlet and overflow kit and a 1-inch bulkhead fitting molded in polypropylene with an EPDM gasket. That PP body and EPDM gasket are a standard, correct pairing for ambient rainwater and grey water at the SG 1.0 water service this tank is rated for, so the seal holds up in normal water duty. It also carries three pre-molded flat lands, sized 15" x 15", 13" x 15", and 14" x 25-3/4", which give the installer a flat, gasketable surface to land additional bulkheads or fittings beyond the supplied outlet and overflow. Confirm the exact fitting locations and sizes against the technical drawing on this page before you set the tank, because changing an outlet after the tank is in place is far harder than planning for it up front.
Rainwater harvesting done right
A black rainwater tank this size earns its keep only when the water reaching it is clean. A first-flush diverter sized to your roof area keeps the dirtiest runoff out of the tank; our Bushman rainwater harvesting and first-flush diverter guide sizes that to the Texas Manual on Rainwater Harvesting, 3rd Edition. If this 5000 gallon black water tank is part of a rural fire-water reserve, treat the bare tank as one component, not a turnkey system: our fire-water reservoir design guide covers NFPA 22 sizing discipline, draw-down, and cold-climate freeze protection. Aggregating rainwater with grey water or HVAC condensate? The industrial water reuse topology guide lays out quality-banded storage trains.
This Bushman 5000 gallon rainwater tank ships LTL freight from our Fairfield, Texas plant, with the rate quoted live to your ZIP code. On a 140" x 140" footprint and 92 inches tall, the empty tank is bulky, so confirm offload equipment and site access before the truck arrives. Get a real number first with the Freight Cost Estimator, or call 866-418-1777 and we will quote it for you and confirm offload requirements for a tank this large. Listed price is before freight.
