I am posting this question under plumbing because there is no category in which it fits and I want to have the widest viewing audience. I often see the word ect in posts on this and many other forums. I haven't any idea of what ect means other than it being an abbreviation for electro-convulsive therapy. The context in which this word is used does not lead me to believe that shock therapy is what the writer was thinking when they used that word. So, my friends, what the heck is ect?