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Range: Up to 2.5′ (.75m)
Capacity: Up to 275 gal. (1000 L)
Range: 2.5′ to 10′ (.75m to 3m)
Capacity: 275 to 5,000 gal. (1,000 to 18,000 L)
Range: 10′ to 100′ (3m to 60m)
Capacity: 5,000 to 1.5 mil gal. (18,000 to 5.6 mil L)*with one machine

Range:

Range is the furthest distance from the placement of the tank cleaning machine.
Example: If you have a tank 7′ in height with a 5′ diameter and center the tank cleaning machine at the top of the tank, the furthest distance from the tank cleaning machine is the bottom “corner” or outside perimeter being 7.4′ from the tank cleaning machine. Therefore you would require a mid-sized machine.