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 South Georgia | Most setups would have an indirect Murphey on the pump, via the pivot's pressure switch and pump control mechanism. However, it's common that the engine is also driving a generator to power the pivot. In this case, it's sometimes necessary to walk the pivot without pumping water, in order to spray, plant, or whatever. So, it's still desirable to have a conventional radiator rather than a heat exchanger in some situations.
Adrian | |
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