The best water treatment system I've owned. They came out on a Saturday to install which was convinent as I work during the week. Larry came out on the following Sunday for a follow up water test. This was a difficult decession as I had another company install a system 4 years ago and had no follow up and could not get service because there office was so far away. American H20 gave me a trial period for six months to prove the system works. It has done exactly what they said it would do. I would highly recommend them.