The jumper was frogged into balls and I was going to wash them as balls until I read a bit about frogging on the internet. Apparently they suggest that you should wash the frogged wool as skeins rather than balls.
I then unwound a few balls into skeins and gave that a go.
This is how the skeins looked after being washed. I wasn’t convinced that the result was any better than leaving the wool in balls to do the wash so I only did what you see here, the rest I left in balls.
After drying the wool I then wound the balls using my new Yarn Winder. I love it.
You can see that there is still a bit of kink in the wool but it won’t be noticed in what I am using it for.
I am happy with the result.
Gippsland Granny 
I always hope to find a jumper at a charity shop that I could do this too but I haven’t found one with lovely yarn.
I found one in a charity shop but I still haven’t frogged it. That is one I am saving for the future. I am trying to reduce my stash at the moment,
Sadly most of the charity shop jumpers are acrylic.
I wonder what you are going to do with the yarn?
I am using it to link all the left over yarn I am making into hexagons.