Yes, I noticed. Most german pages I read said with regards to your technique: Use hot glue or nothing - other sealings may not be air-tight or may react chemically with the ink. It's interesting to see that other people also have good experiences with plastic or stainless steel screws or other...
Not at all, the hole can stay open. If the tank chamber is sealed air-tight, there will be no ink coming out of the refill hole (the sponge will seal the hole) or out of the normal ink outlet on the bottom of the cartridge. If the tank chamber is not sealed air-tight, there will be ink dripping...
Hi, I have some good experiences with a refilling technique which is quite popular in Germany (thanks to Ritchman, gurl and others). It's called something like "piercing method"(?) or "Ritchman method" over here, and I like it because it's very easy and safe.
1. Make a hole in the front side of...