Low water pressure has been bothering my home for long time, years, finally I decided to change the resin for my Aqua System SC15TB by myself. 1.5cb 8% resin, ordered from this website, which is the best price I could find, received 0.5cb 8% + 1 cb 10% (better with same price). Mix them and work very well, solved my problem, avoided an expensive softener replacement. Since I needed to mix resins, I asked some questions on-line, and got answers and suggestions quickly, Recommend the service of th...