4700 gallon Harvest Top water tank (rain catchment tank)

The Bushman 4700 gallon Harvest Top water tank is a vertical polyethylene storage tank built for rain catchment and bulk water storage, with verified dimensions of a 104-inch diameter and a height of 152.5 inches. It holds 4,700 gallons on a round footprint about 104 inches across, which makes it a serious reservoir for rainwater harvesting, irrigation supply, livestock water, or a rural fire-water buffer where a large above-ground poly tank does the job a concrete cistern used to. If you are still deciding how much storage your roof area and rainfall actually justify, run the numbers first with our Tank Sizing Calculator and the Tank Sizing Guide.

Will it work for your site?

This is a rain catchment and bulk water tank, not a chemical tank. Filled to capacity with water it carries roughly 39,198 pounds, so the pad matters as much as the tank. A tank this size needs a level, engineered base sized for the full water weight, not just packed gravel, and because the tank is round you want that base squared to at least the 104-inch diameter with room to spare. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework and where the ACI 318 boundary begins. Once it is set and plumbed, follow a disciplined hydrostatic test at first fill to confirm pad settlement and fitting integrity before you rely on it.

Sizing for its real job

At 4,700 gallons this tank sits in the range where rainwater harvesting overlaps with reuse and reserve storage. If you are aggregating grey-water, roof runoff, or HVAC condensate, our write-up on industrial water reuse tank topology covers quality-banded storage trains and treatment sequencing. For rural sites treating this as a private fire-water reservoir, the NFPA 22 sizing and freeze-protection guide covers where a poly tank fits in the protection stack and how to keep it from freezing in cold climates.

The mistake to avoid

The common error on a tank this tall is undersizing the base. At 152.5 inches of height and just under 20 tons when full, an uneven or undersized pad lets the tank load unevenly, which stresses the wall over time. Size the pad to the full water weight first, then set the tank. Verify the diameter and height against your available flat area and overhead clearance before you order.

This tank ships LTL freight, quoted live to your ZIP code. Get an LTL freight quote to your ZIP with the Freight Cost Estimator, or call 866-418-1777 and we will size the tank and quote the freight with you.