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Windshield washer spray marker uses paint
Dan Bonnett, Amboy, Minn., used the windshield washer tanks and nozzles off a pair of 1978 Ford pickups to build low-cost spray markers that he mounted on the ends of the booms on his Hagie 60-ft. high-clearance sprayer.
Bonnett mounted each tank midway out on either side of the boom and fitted a windshield washer nozzle to the end of each boom. Tanks are equipped with built-in pumps that send a 50-50 mixture of white latex paint and water to the nozzles.
"I saved a lot of money and it works as good or better than any spray marker on the market," says Bonnett. "I use it at the end of each field so I know where to go back into the field after turning. My sprayer covers 24 rows and it's hard to count the rows that far out. Each tank holds a half-gallon of thinned-out water-based latex paint. The nozzles deliver a 1-ft. wide flat spray pattern. I spent only about $15 to build my spray markers. Comparable commercial spray markers cost about $750. Any windshield washer tank with an internal motor and pump would work."
Bonnett made a metal saddle for each wedge-shaped tank, holding the tanks in place with rubber bunge cords. He bored out the orifice on each nozzle so they could handle the thick spray liquid. He grounded each tank's 12-volt motor and pump to the boom and ran lead wires to a pair of push buttons inside the cab.
Contact: FARM SHOW Followup, Dan Bonnett, Rt. 1, Box 215, Amboy, Minn. 56010 (ph 507 674-3912).


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1992 - Volume #16, Issue #1