Our water is 495 td and after new filters and a new membrane I have a screaming 95 td rising to 120 td overnight and this is the second filter to do that does. Previously their filters were made in America and after replacing them they gave us 25-35 tons. This RO machine is assembled. You can't even use other types of diaphragms as they are designed to have a seal on the other end. Goodbye, goodbye, Watts. We've been using Watts for fifteen years. I will continue.
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