Burping Prera

[Uncial]

I use my Pilot Prera as an eyedropper. It's the green demonstrator that I fill with Kobe no.19 and I think it looks quite cool. I even like the white, semi-opaque cap that others despise. It's a decent little cheapy and I've had fun with it for a while, but lately it has been burping; burping a lot. I suspect it has something to do with the way the cap is held in place. Has anyone else found this, and might there be a solution?

 

[mbankirer]

How full is the barrel when it 'burps'? Or how much heat are you generating by holding it? The pressure inside can force the ink out.

[Uncial]

It happens regardless of how full or empty it is. I know that when you get to a certain ink level, some eyedroppers can burp. This one does it repeatedly. It might be heat of my hand, but I wondered if the cap (which creates a kind of suction feeling when closing and opening) might be exacerbating it.

[Dillo]

Hi,

 

If it leaks all the time like that, it may be that the pen leaks air into the reservoir. A lot of pens that weren't initially designed to be used as eyedroppers have either venting by design or inadvertent, or things that keep the threads from being completely airtight.

 

Dillon