@Matthieu Droulez
Since waterproof fountain pen inks are now easier to find, the selling point of the Indigraph (able to use India ink) isn't that compelling anymore. Anyway, using India ink is usually not recommended inside pens. If you keep the water in this pen for too long, there could be mold growth.
@Matthieu Droulez
Since waterproof fountain pen inks are now easier to find, the selling point of the Indigraph (able to use India ink) isn't that compelling anymore. Anyway, using India ink is usually not recommended inside pens. If you keep the water in this pen for too long, there could be mold growth.
My suggestion is to get a normal fountain pen, and use these waterproof fountain pen inks I've recommended.