My Kaco EDGE is drying out, even when using it the next day. I feel that the issue is related to the converter, because usually I can fix the issue (even for a couple of days) by driving the converter just a little bit outwards and then cleaning the pen. The converter is a rather cheap one made of plastic. It came in a set with the pen and the schmidt EF nib. I saw this set of many places, but it looked like this:
https://www.amazon.com/Matte-Fountain-Schmidt-Cartridges-Original/dp/B07HG1J9M1
What is the “right way” to fix this. I know the TWSBI Eco wants to be greased regularly – is this a thing with converters?
If a cartridge behaves fine then the cap seal is less likely to be the problem, but again different inks behave in different way that may accentuate a cap seal problem. Very few pen caps create perfect seal anyway but some are better than others (I think Platinum have the Slip and Seal system).
If your ink is alcohol-based (never heard of this but then I don’t have any old ink) then I would imagine it would be highly susceptible to evaporation and drying out. I’d pick up some different water-based ink if you prefer the CC over cartridges.