How to Clean a TWSBI ECO Fountain Pen 

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@@thestationerydev oh yes! Very good info. Thank you!

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You might try running some warm water through the pen with the piston and that might help loosen things up. Otherwise, you can use a piece of tape, jar gripper, or something else to help you grip the nib and feed with less pressure.

Ouch. That happened to me once. I removed nib & feed out, and soaked it in water with a few drops of dish soap for a few days. That dissolved enough ink to let me move the piston again. Then I disassemble the pen and reapplied silicon grease to the piston. Hope you get yours working again fingers crossed 🤞.

You would be totally fine with just flushing everything out through the nib with the piston. Only downside would be that it might take a bit longer, and you might have some residual ink in there from the last color when you switch to the new color, but that's totally fine. If there is some of the old color still in there, the new color should even out after writing a few lines. No big deal.

@@thestationerydev thank you

To help with grip, you can either use some scotch tape on the nib, or perhaps find a thin piece of rubber to grip. The feed comes out with the nib, so usually you can just grab both the nib and feed firmly between your thumb and index finger knuckle and wiggle them straight out. Hope that helps! Sometimes maybe running the nib under some warm water can help loosen stuff up as well.

Definitely can happen. I've had about 4 bottles go bad. Usually it's either floating on the top, or creates a slime in the bottle which is really stringy when you pull you pen or syringe out (or stops up the syringe in one of my cases). The other telltale sign is the smell. The ink will actually smell rotten and horrible, not just the usual chemical smell. Hope you never get it, but it is fairly common unfortunately.

​@@thestationerydev the more you know, and not something you easily learn about when fountain pen shopping. I'm extra glad I found this video now 😅😅

I do it just to kind of get water flowing through it and loosen up anything that has been dried, especially if it has been sitting for months like this one. Plus, it saves you hands from getting really inky with any ink left in the nib/feed.

@@thestationerydev makes sense. Thank you!

If after cleaning and using different inks the nib is still scratchy, then most likely your tines are probably not aligned. Two things that can help with this: 1) Try to figure out which tine is lower. If drawing a line left-to-right is scratchy then the left tine is lower. If drawing a line right-to-left is scratchy, then the right tine is lower. Then after you know which one is lower you can gently use your fingernail to start applying upward pressure to it to try to get it in line with the other. The key is gradual pressure. Put a little bit of pressure then test and so on until the tines are even and the pen writes smooth both ways. 2) If you are sure the tines are in alignment and it is still scratchy, you can get some micro mesh (really fine grain sandpaper; the one I use is 12,000 grit) and, with ink in the pen, draw a few figure eights. Then test the writing on paper and repeat the process gradually until you are happy with the smoothness. I don't have a video out yet on nib tuning, but there are some pretty good ones out there to watch. Good luck and hope that helps!

You can use a nail file. The one with with 4 grits. Use the finest grit and it’ll smooth the scratchiness.

@@jomsies thank you, store changed the nib I think it was problematic