I purchased and installed my Halo 5 system 9/30/17 and cleaned my entire house before using the system. After using the system the first week I could see a noticeable difference there was no white film on my shower doors or in my sinks and best of all was the taste of the water. I can also feel a difference in my skin and my hair. The owner Glen went out of his way to answer all my questions, and I had a lot. Now I’m trying to talk my friends into installing one.