....and another one turns to mush.
My Parker 51 Vac has had its little rubber buttony thingy replaced for the second time in two years. Maybe this isn't bad going considering the poor quality of rubber sacs and vac units these days, but this time it has left me with a bit of a pain. It's sucking and vac-ing ok but when I fill it with ink it's leaking down through the nib and a little out from the hood section (possibly even the barrel seal, hard to tell with so much ink on my fingers). I can't remember putting silicone grease in any of the threads the last time, but perhaps I did. My question is should I? Will this halt the leaking?