"I have direct hands-on experience with submersible pumps used around the home and rotary displacement pumps used in hydraulic systems. Having a strong background in mechanics, I would come to your team as a water treatment operator who is excited to learn the ins and outs of the positive displacement pumps you use here. Can you elaborate on any other types of pumps that this facility uses the most?"

This is a question that you can certainly answer briefly and factually. Take a moment to explain which water pumps you are most experienced in working with if you have firsthand experience. If you need to, be sure to familiarize yourself with the centrifugal, progressive cavity, and positive displacement water pumps, as they are the most commonly used in water treatment processes. If you want, you can follow up with a question for the interviewer on this subject as well.