This Instructable shows how to refill rollerball pens. Or since we know how to save 200$ by hacking MONT BLANC Refills to fit in Pilot G2 we all want to save even more by refilling the refills :)
What we'll need:
Pot with Water ,Cooker
Inkpot (I used Pelikan 4001 black. It is for fountain pens. But any ink will do)
Step 1: Boil it!
We have to put the Refill in a pot, add some water an boil it.