They installed the initial water filtration system in this house because we had iron in the water. It was so bad we had iron coming through the pores in our skin! Then, six months later, black stuff started coming through our water. We called Clearwater Systems Meadville, PA again and they installed another unit to take care of that. Now, the water is clear, with no coloration, no staining, and it tastes great. We used Clearwater for a system in our other house, so we knew we could count on them to take care of the problem. They didn't waste any time and got everything installed efficiently. We are very pleased with the results. The water is clear and the taste is excellent. I always recommend Clearwater Systems Meadville, PA, and continue to recommend them.