There is a great liquid level sensor that I have been using in a number of sump pump wells (I use to track volume, and trigger the pump).
The sensor is called eTape, check it out: http://www.milonetech.com/Home_Page.html
There is a great liquid level sensor that I have been using in a number of sump pump wells (I use to track volume, and trigger the pump).
The sensor is called eTape, check it out: http://www.milonetech.com/Home_Page.html