The Bushman 4050 Gallon Mocha Rainwater Collection Storage Tank is a large-capacity polyethylene rainwater tank built for whole-property water storage, fire-protection reserves, and rural rainwater harvesting. At 4,050 gallons in a mocha exterior, this tank stands 129 inches tall on a 101 x 101 inch footprint, a tall profile suited to sites where ground area is limited but vertical clearance is available.
Will it work for your site?
This is a water storage tank rated to a specific gravity of 1.0, meaning it is engineered for water and water-equivalent liquids only. Anything denser than water needs a different, chemical-rated tank rather than this one. Confirm your pad and plumbing plan around the real numbers: filled with water, the tank carries a full water weight of 33,777 pounds, which is also its maximum rated contents weight. That load sits on the 101 x 101 inch footprint, so the supporting surface has to be flat, level, and rated for the static load. Before you pour or place anything, run the dimensions and weight through the Tank Sizing Calculator and review the Tank Sizing Guide to confirm 4,050 gallons matches your demand and catchment.
Fittings and connections
The technical drawing on this page shows a single bulkhead fitting at 1" NPT. Treat that as a real planning constraint: verify on the drawing that one 1" NPT port meets your combined inlet, outlet, and overflow needs before you buy, rather than assuming multiple ports. When you make the connection, confirm the bulkhead gasket is properly seated and use appropriate NPT thread sealant so the joint stays leak-free. Use the drawing as the authority on fitting type, size, and placement. The 129-inch height also gives you usable head for gravity-fed distribution downstream of the tank.
Pad, foundation, and anchoring
A tank carrying nearly 34,000 pounds when full lives or dies by its foundation. The base must fully support the entire 101 x 101 inch footprint with no voids or high spots. At 129 inches tall on a 101-inch base, this is a tall tank relative to its footprint, so wind-exposed or seismic sites should also plan for anchoring or tie-down. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework so the slab is sized for the load rather than guessed.
Rainwater harvesting and fire reserve
This tank is a workhorse for rainwater collection. For harvesting design, the guide on Bushman rainwater harvesting tanks and first-flush diverter sizing follows the Texas Manual on Rainwater Harvesting, 3rd Edition, for sizing first-flush diverters ahead of the inlet. If this volume is feeding a rural fire-protection reserve, the design discussion in fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing discipline and freeze protection. Sites aggregating multiple water streams can also reference our write-up on industrial water reuse tank topology.
Mistake to avoid
The single most common error on a tank this size is under-building the base. The footprint dimension is the support requirement, not a suggestion: any unsupported area under the floor concentrates stress as the tank fills toward its 33,777-pound load. Size and level the pad for the full footprint before delivery, not after.
This Bushman 4050 ships LTL freight from the Temecula, CA plant, quoted live to your ZIP. Because it ships from a single West Coast origin, buyers outside California should expect freight to scale with distance on a tank this size, so run your rate early with our Freight Cost Estimator rather than waiting until checkout, or call 866-418-1777 to lock in delivery on your water storage tank. Price is list and does not include freight, which is quoted separately to your destination.
