How do i refill my foundation pen?

Do you mean fountain pen? If so, then there are different types. Some have a tube which needs to be filled by forcing the air out of the tube first, then letting it fill itself from the inkwell. In the older types, you had to fill the ink chamber with a dropper. The modern types have cartridges which can be replaced.


Hope this helps. Never heard of a foundation pen.
How do i refill my foundation pen?
Dont u know that u can use and ink filler or ujst go for ink cartridge.