Penburst
Member
I have a fountain pen with a converter that had black ink. I switched to a reddish ink, "Apache Sunset", by first "completely" flushing both the nib assembly and converter several times, then drying out before filling with the Apache Sunset ink. After some brief writing, the black ink reappeared, then switched to the Apache Sunset. I repeated the cleaning, including soaking of the nib assembly. Same problem. Where is that black ink coming from? All thoughts welcomed. Thanks in advance.