When we were building our new home, our contractor recommended Clearwater Systems Hamilton & Missoula, MT to us. We have a well, and we have to filter out the iron from the water. The company has been very responsive to our needs, and also very helpful. When I went to the shop to buy a new filter for the reverse osmosis system, Darren, the salesman, took me into the back room and walked me through the process step by step on the demo model system. That was very nice of him. We have been very happy with the company!