The process took 5 weeks. I interviewed at Ecolab in Sep 2011
Interview
I applied online through a job search engine and was called within a few days by HR to set up a phone interview. I completed the phone interview with the HR representative within a week of applying. It took three to four weeks before I was called back to schedule an in-person 1:1 interview. The 1:1 interview was more about learning about the position rather than doing much talking. The final round was a ride-along experience with one of the representatives in the field to see how the work is actually done. I was advised that asking questions during the ride-along was good and showed that you are interested in the position.