Refilling a Pilot V-Sign pen

I often get asked about the pens that I use for my diagrams. And this is a Vsign pen by Pilot. And as supplied, the purple body does indicate that it is a purple pen. Produces a nice solid line. Gets thicker the older it gets. But anyway, uh I empty this out and I refill it with black ink. And to do that, I grip the gray section here and I pull it out and I'll just stick it on a bit of paper towel to the side here. Then I get a syringe, stick it in, and I suck all the purple ink out. There's not a huge amount in it. Once I've done that, I'll put that out the way where I don't knock over and spill purple ink anywhere. I then get black printer ink. This is uh just using old stock of Asda generic refill ink. I don't even know if they do that anymore, but it's what I have. And you stick uh I put it into this. And then I just You could use a syringe if you want. Stick it down into here. And then just drizzle it in until it's full. And once I've done that, I get the nib, which I'm going to get it all over my fingers here, and shove it back in. And it's still loaded with purple ink. It will click on. But as I scribble with this and I'll pause while I do this. And after a while, the ink will start coming through dark purple. And then it gradually transitions to black. And that is it now a black pen. And I do refill this. So, I get a good number of refills before the tip finally sort of wears down to a sort of more rounded end that starts causing much thicker lines. Uh, but there we go. Uh, my choice of pen, the Pilot Vsign pen. It's very good. I really like it.