Recent content by GeneMN

Thanks. Yes, 120V. That was my first thought, and would be a good solution to do it manually. However, I need it to function on it's own. The circuit is on a timer to control the total amount of water pumped. I need a way to check and empty the graywater tank first, then switch to the rainwater...

I have a small greenhouse with a two tank cistern--graywater and rainwater with a pump in each tank--and need to switch automatically from the graywater pump when it is nearly empty to the rainwater pump. All I've been able to find are on/off switches; what I need is the equivalent of a three...