For the 1 or 2 still taggin' along, Oxiclean is the ticket to removing the undesirables from the cases. Although I haven't balanced the equations, water seems to be the catalyst? Anyway, natrium perborate or sodium perborate is the key ingredient.


https://www.youtube.com/watch?v=ANeHbCjGIwM

Cheers,

Raimey
rse