MBA Internship applicants have rated the interview process at Ecolab with 1 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 69.2% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Usual questions, tell me about yourself and so on. Two persons, two interviews. One is the recruiter HR and another from the business unit you are applying (finance, marketing, etc)