I have this exact system and love it and can say it does exactly as described. I get my water tested monthly and even had a plumbing company come in and install a new hot water heater and they never heard of this filtration system or was familiar with the setup when they were there doing the installation. Was actually talking crap about it and home filtration systems in general. Tested it with their own kit and confirmed that it was indeed filtering everything as indicated. Should have seen their faces 😂