By removing and reinstalling the nib/feeder, air is allowed inside the barrel, causing an imbalanced pressure within. The result is ink being pushed out at a rapid rate. Therefore, after reinstalling the feeder/nib(make sure feeder/nib are seated properly at bottom of the feeder chamber), please remember to use a cloth/tissue to soak up all excess ink on the feeder (Do this also after refills). This will balance out the ink/air pressure inside the feeder and barrel, ensuring smooth operations