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Originally Posted by JCL
The direction of the twist would appear to indicate that it happens when the filter is installed, not removed. ...
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I don't know how to quantify how much it impacts performance of the filter, unless the filter has separated at the ends. It is just something that doesn't look right.
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Ah...very good observation.
And I agree with your other statement, too. The image of the filter in the 1st post doesn't show that the filtering media has been ripped, torn, collapsed, or crushed in any way...so that would indicate that there probably wasn't' any diminished filtering capacity...but the twist does look visually odd and indicates some kind of binding at the top or bottom when reinstalling the filter & lid.
Very, very interesting.