I recently bought a trike with only 136h on but the hanger got some flying activity on the inside for quite some time and the owner didnt do anything about it.

So an owl made the trike his dropzone for all the mice and rats he ate.

How am I going to get the wing clean?
We took the wing of and layed it on the ground.
I took a hosepipe and I soaked it good to soften all of the white and brown stuff that got deposited.
After that I used sunlight liquid and a brush.. it worked!!!!!

But all of the brown stripes stayed put...

Any help with that? What other chemicals can be used to clean those brown stains?
Thanks for your advice.
