We’ve got some friends who have two sump pumps. One is a backup and sounds an alarm when it is switched on. But this only works as long as they’re home to hear it. [Felix Rusu] came up with a ...

The system he built will sound an audio alarm and send an email if something goes wrong with the sump pump. He’s monitoring for two different issues. One technique uses a float valve to sense if ...

But there are ways to avoid that. If you buy a new AC sump pump run by a controller, it will come with some type of alarm to let you know if the pump fails or the power goes out. The same holds true ...