Hi Customer (name blocked for privacy). Thank you for asking your question on Just Answer. The other experts and I are working on your answer. By the way, it would help us to know:
-Could you explain your situation a little more?
I would need to know the model of your pen to give you specific information on your actual pen.
Identifying the pen can be quite difficult. I yo can go to the link I have provided below and look for a pen that is like yours, nd then provide me the URL or link to that specific eBay auction I can answer your question.
http://search.ebay.com/esterbrook-fountain_W0QQfromZR40QQpqryZEasterbrookQ20fountain
Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.
Of course if you have a digital picture or can scan the pen on your scanner, that can also help me to determine what directions will fill the inkwell.
My email address can be found by clicking on my name and viewing my information. It is answerexpert@aol.com