
When I was looking for a good filter, I ordered a water quality meter (ppm - parts per million). I checked the water quality before installation (it was 450ppm - horrible water quality) and after installation (it was 380ppm - also horrible water quality). This means that the filter is not working properly, as ideal drinking water should be between 0 and 50 ppm. So I brought the filer back. Not recommended!

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