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| Culligan Please use this forum to ask specific questions about Culligan brand replacement water filters. |
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| Culligan RFC-BB. I changed my filter and a week later the outside of the filter was a light tan color. I took it out but the water wasn't dirty. Do they turn color when they are first used? |
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| There is microscopic sediment in the water (not visible to the human eye) being trapped in the outside layer, which is causing the color change. If you didn't experience a major pressure drop, that filter still has a long life ahead of it. Thank you, WaterFilters.NET |
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