My old man was an old fashioned efficient farmer...he drilled it into my head to discharge the clippings into the area already mowed because throwing it into the uncut area you are mowing it twice. To each their own but 20 years later I'm still mowing the same way.
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Daniel G.
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(May 1970) 147 w/an IH spring assist, 48" deck, 42" blade, 1969 73, #2 trailer, 10" Brinly plow and (on loan) Dad's #2 tiller.