I'm in love with snorkels. I can't lie. I have TONS of them, and I specialize is hunting down funky, broader nibs. I also have a love of ink, as some of you may know.
This can sometimes cause a problem. Because I don't feel like resac-ing a snorkel by myself (though I did learn how to do it), it costs me $40 CAD every time an ink eats through the sac. At first, I was just mentally remembering which ones not to use, but now the list is getting longer, so I thought I'd put a post up here, and then link it in my signature so I could always find it, and so other interested parties could as well.
I'd love to hear what everyone else has experienced too. Add to this thread and I'll periodically update the first post after a few people have agreed that the inks does in fact chew through sacs.
***PLEASE NOTE: I am 100% NOT suggesting not to use these inks. Some of these inks are my absolute favorites, and I still use them all the time. Except now I use them in piston and converter pens, and they behave perfectly.***
Caran d'Ache Storm - this just ate the sac of a snorkel recently. However, I had it for one day less in another snorkel and that snorkel still functions. Not sure what it looks like inside or how long the sac will last now, but ... <shrug>
Diamine Midnight Blue - I used this for a year in the same snorkel with no problems. Of course, I probably only used the pen maybe 4 times, but on the 5th time it didn't work. The man who repairs all my snorkels for me (Restorer's Art), showed me a picture of the chewed sac. Now I only use it in converter/piston pens.
Cult Pens Deep Dark Blue - another absolute favourite of mine that now lives in converter/piston pens. It ate through the sacs of two snorkels.