That heat wave is bad. And my air conditioner loves dripping wetting the floor. Last year I tried to solve it with a water level sensor, an Arduino, and a relay to turn the power on and off automatically.

But the sensor corroded after just a few months.

Now with the help of my 3D printer and a magnetic field sensor, I try to find a different solution that doesn’t put any electronics in the water, and will last much longer.

In this video I show the process of automating my water pump, creating a water level and sensor.