I was replacing 2 10hp sewage ejector pumps today at a shopping center. There was constent flow so I was rushing to get back on line before filling the pit. so we rigged the new pumps into the pit and piped 1 pump in. They were 3 phase pumps so I wanted to fire it to check polarity. Unfortunitly to my suprise I wired in the leads to the unpiped pump and fired it up while standing above the discharge. just my luck I got the polarity right first time. It actualy shot up thru my nose and came out my mouth. I love my job.