Q: We’ve had to replace several sump pumps in just a few years and I’m wondering why. We initially had a pump with the float on a rod, but the first time our basement flooded, it was because lime ...

Sump pumps are essential to keeping your house dry and free of mold and mildew. They come to the rescue for emergency flooding and for groundwater that threatens the basement and foundation. The ...

They use a buoyant float to gauge a fluid level. In most models, the float carries permanent magnets and encircles a stationary stem. As the float rises or drops with fluid level, the magnetic field ...

Liquid-level switches used in aircraft, nuclear-power plants, medical equipment, and other critical applications must be precise and reliable. For that to happen, design engineers must know the ...

Our basement has only flooded twice in 15 years. Would it be wise--or a waste of money--to install a sump pump? This is a matter of personal preference, and depends on the cost of installing the sump ...

Here we describe an electronic system that uses a dedicated water-level sensor to switch off the pump motor as soon as the ...