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“Made It Myself” Float Switch Controls Pump
Roger Thompson has a low-cost solution to solve problems with stock tank floats. His modified pressure switch gets the job done, and it doesn’t cost $50 or more like conventional float switches.
    “I take a standard 40/60 pressure switch and remove the springs. I bolt a steel strap to the plate that activates the points,” says Thompson. “The float ball rod bolts to a hole in the end of the strap.”
    Thompson welds another flat steel strap to a 1-in. plug underneath the original pressure switch. Holes at the end of this strap make it easy to mount the assembly to the stock tank. Once the switch is connected between the power source and the pump, the float is in control.
    “When the water level raises the ball, the switch shuts off the pump,” notes Thompson.
    Thompson installs the switch for customers of Bud’s Pump Service, a well drilling and pump business that’s been in the family for 115 years. He also sells the assembly through a local hardware store for $36.
    “They work great when paired with a small, propane-powered, auto-start generator for remote wells and stock tanks,” says Thompson. “I set them up so when the generator starts up, it sends a text to a cell phone.”
    Thompson also has a simple solution to prevent freeze-up of the well pipe when it services a single large stock tank. He drills a small drain hole in the drop pipe at a point 6 ft. down.
    “When the pump shuts off, the water in the pipe drains out well below the frost line,” says Thompson.
    Contact: FARM SHOW Followup, Bud’s Pump Service, 2381 137th Ave. NW, Arnegard, N. Dak. 58835 (ph 701 586-3442).


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2019 - Volume #43, Issue #2