I bought the filter unit 2 years ago and I really like the improved water throughout the house. However, now the filters serve less. The last filter only lasted 2 months before noticing a significant drop in water pressure. I regained most of the pressure after pulling out the filter and hosing the filter down until it turned white. There may have been more rust in city water this summer, but I can't believe it's that much more. The first filters I bought lasted 6-9 months.
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