"I'm very familiar with the use of ozone for preserving food products and know it's been highly effective in that usage. I'm also familiar with the fact that it's been effectively used in fire and flood restoration efforts for decades. I honestly don't know much about the actual process for the use of ozone in water treatment, but would love to learn more. Is this something you are considering implementing at some point in the future?"

Ozone is used in many realms to remove harmful chemicals and materials, from fire restoration to being used as a preservative in the food & beverage industries. Whether you are familiar with its usage in water treatment firsthand, make it clear that you understand its use in removing pollutants and other contaminants from water. This question may provide a great opportunity for further discussion if you ask questions at the end of your answer.