I searched a lot last few days, and I thought air pressure fail in reservouir tank, so I drained all the water and re-pressurized. Nothing change, so I noticed that I haven't change membrane for several years and so as pre filter. I replaced them. Still no sign. I disconnected all the tubes and check water flow. From cold water line was fine, so I connected to system then checked outline from sediment and carbon filters. And I found water was dripping. I saw really dirty sediment and carbon which replaced 1.5month ago.
I replaced them then it solved problem. I never expect those filters clog.
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08-19-2014, 03:38 AM
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