About Nation's Pure Water Systems There are three things that make Nation’s Pure Water Systems who we are today. Experience. We have been thriving in business for almost a quarter of a century. That is thousands upon thousands of successful water treatment applications. Having a personal history is not only an important part of our internal database of statistics and cross referencing it is a track record you can depend upon. Results Based Solutions. As an independently owned and operated corporation, we let the needs of our customers drive our product orders and we let the science drive our products. This common sense approach allows us to exclude useless technology and only employ effective solutions.