After doing two loads of laundry, there was clanking sound as I removed the last clothes from the (front loading) washing machine. My heart sank as I saw my faithful ancient Parker Vector fountain pen in the bottom of the machine. I knew it had been in a pocket of some pants in the first load, and had therefore been washed twice! It had a mixture of Noodler’s Heart of Darkness ink and Hero brand red ink in it.
After frantically checking the clothes, I was shocked by the lack of ink stains. The pen lost no ink, and was still writing!
Three cheers for fabulous/cheap fountain pens. YMM, most likely, not every vector can survive this.