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ducklas

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  1. Not totally inline with the original post, but I've always been concerned about running 230VAC into my water tank. I designed the attached circuit to warn me that the tanks aren't filling; the float switch runs on 6VDC and is set to activate when the tank is about 1/3rd empty (won't happen at my house if the mains are supplying water). When all is normal the Green LED lights. If the float switch activates, the Red LED lights and the pump(s) are shut off to let me know. The override switch can be activated to restore operation and the Blue LED lights to remind me that the override is on. 230VAC never gets near the tanks. Schematic, Water Pump Shut Off.pdf
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