I bought this based on the certificates I received. I wanted a water machine that wouldn't take 20 minutes to fill a glass, or worse, a water container. I also bought a water meter. Glad I bought a counter! Installing the faucet was easy. I flushed the system for 10 minutes as instructed and then tested my water, it showed 74ppm. Flush another 10 minutes, check again, showed 76 ppm. Flush an additional 10 minutes, read at 77 ppm. During the flush, I checked the water from the sink, which also showed 73 ppm. So I felt the numbers were right. I also checked the current water I'm drinking, it showed 30ppm. And the water bottle has been tested to 1ppm. I was disappointed with the readings I received, so I am returning the device. If you choose this device, don't forget to get a water tester too! Other interesting points. The plugs were easy to install on the bottom of the unit, but the gray part that you have to "press and hold" to remove the filter is incredibly small and I have tiny fingers! I also rotated the filter housing a bit to see how difficult it would be to change them since I drink a lot of water and knew I would change them 2 times a year. Also impossible! You need superhero power to get the job done! Very disappointed with this filter system! I do not recommend this system.
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