I just got my new Karas Kustoms Fountain K EF Friday. I haven't had it that long, but in the time I've had it I've made an observation on the issue of the pen spitting out ink on the page after refilling.
I made sure to read every review on the Fountain K, on this forum and every other review I could find, before making my purchase. Many of the reviews on this forum mentioned a "burping" issue whenever they first start writing again after just refilling the pen. Some of these reviews were older and I couldn't find any other reviews off-forum that mentioned the issue, so I hoped that it was just a quality control issue that had been fixed.
I found out when I first filled my new Fountain K that I was wrong.
First of all, the insert that comes with the Fountain K suggests keeping the converter attached to the nib unit while filling. This may be standard practice, but I wouldn't know. In my time with the Lamy brand I've always taken the converter out before filling. It just seems logical and way less messy. Since I've never had a problem, I never watched or read in-depth on how to properly fill a converter pen.
So, I decide to try it their way. They are the pen manufacturers and they must know what is what. When I did this with the K5 converter that came with the pen, there was not enough suction. There was a sizable air bubble at the top, no matter how slow or fast I filled the pen, or how much of the channel I covered.
When I started writing, there came the ink burps. Three good splotches on my paper. I un-filled and re-filled. Same issue. I dabbed and cleaned the channel and wiped the pen of excess ink, and it happened every time.
So I took the converter out and filled it directly. Not only did it fill to the top, but after a little blotting of the end, it wrote without issue. No burps, no mess. And I've done it this way several times. Now it writes like a dream.
I guess the discussion I'd like to have with other Fountain K owners is this: did you all have this issue? Do you think this is a quality control issue? Did you fill the pen like the insert says or strictly from the converter? Since a lot of the reviews were older, where are you guys now with your Fountain K? Did you resolve your issues? Are you happy with your pens?
Since the Fountain K uses the same nib unit as the Kaweco, do any Kaweco owners have any issues with burping pens? If so, how did you overcome them?
I guess I'm just hoping this is a permanent fix. The Fountain K is definitely the best pen I have used. I love everything about it, from the smoothness to the durability. I don't want this to be a flaw that continues to bug me years down the road.
ETA: Fixed messed up tags
Edited by Tedium42, 15 August 2016 - 01:59.