The Bushman 4050 Gallon Dark Brown Rainwater Collection Storage Tank is a polyethylene rainwater storage tank built for large-volume residential, agricultural, and rural water storage. At a listed 4,050-gallon capacity, it measures 101 inches in diameter and stands 129 inches tall, giving it a 101.0 x 101.0 inch footprint. If you are sizing a rainwater catchment or general water storage system, this is one of the larger single-tank options available. It ships LTL from Temecula, CA, so get a live ZIP quote before you commit, especially if your site is east of the Rockies.
Will it work for your site
This tank carries a specific gravity rating of 1.0, which means it is engineered for water and water-weight contents - not heavier chemical solutions. Filled to capacity with water, the contents alone weigh roughly 33,777 pounds, and that is the figure to plan your pad around: the maximum rated contents weight is also 33,777 pounds. A load that size demands a properly engineered, level foundation. Our concrete pad sizing guide walks through the ACI 360R-10 framework for above-ground polyethylene tanks so the base can actually carry a full 4,050-gallon load.
The technical drawing for this tank shows a single outlet: a 1" NPT bulkhead fitting. If your install needs additional penetrations - overflow, vent, or a secondary draw - plan for field-installed bulkheads or call 866-418-1777 to confirm options. Review the technical drawing on this page to verify fitting type, diameter, and placement against your plumbing plan before you order.
Sizing it to your demand
Choosing the right capacity is the difference between a tank that carries you through a dry stretch and one that runs empty. For rainwater harvesting, match the tank to your roof catchment area and local rainfall, and consider first-flush diversion ahead of the inlet - our guide on Bushman rainwater harvesting and first-flush diverter sizing per the Texas Manual on Rainwater Harvesting covers that math. If this tank is part of a rural fire-protection plan, the fire-water reservoir design guide applies NFPA 22 sizing discipline. To run your own numbers, use the Tank Sizing Calculator alongside the Tank Sizing Guide. Pairing rainwater with grey-water or HVAC condensate? See our industrial water reuse tank topology guide.
Avoid the most common mistake
The single biggest mistake on a tank this size is underbuilding the foundation. At nearly 17 tons full, a 4,050-gallon water tank concentrates enormous load over its 101-inch base. Cracking, tilting, and stress on the tank wall all trace back to an inadequate or uneven pad. Set the foundation first, confirm it is level and rated for the full contents weight, and only then position and fill the tank.
This Bushman water storage tank ships LTL freight from the Temecula, CA plant, with cost quoted live to your ZIP code - get your number from the Freight Cost Estimator or call us at 866-418-1777. Because the tank stands 129 inches tall and 101 inches in diameter, it exceeds standard doorway and gate clearances and needs a flatbed delivery with forklift or crane offload - plan delivery access and equipment in advance for this oversize water storage tank.
