Join Date: Jul 2000
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erps is correct.
It takes time for the filter material to 'wet-out' and for the entrapped air bubbles INSIDE the filter material to 'release' and dissipate. Starting out with 'soaked' filters or 'filled filters' will greatly speed up the air-shedding process.
Of course the re-assembly of the filter housing HAS to include no 'leaks' that allows additional air uptake.