Since I installed your PC-6 Ultra-violet sterilizer, the quality of my well water has greatly improved. It kills viruses and smelly bacteria. My wife told me that she’d rather drink the clear, smooth and soft water than any of the coke types. I installed it in a place where I could conveniently change the UV lamp. However, I will not have to do it for at least two years. Thank you! Also your website is not confusing it is easy to follow.