Blackhorse - This sounds great, but I'm confused. I get that the product LEMI SHINE is meant for dishwashers. You say you filled the cases with it and checked on them after 6 hours.

Did you just let them stand in a basin or something and just let the product break down the BP grit?

I thought this was feasible, but then I read where you "re-loaded it again and let it run another 6 hours". This seems to indicate you loading the cases and LEMI SHINE in a machine, i.e. a dishwasher, and "let it run".

Is this what you did? Putting them in a dishwasher and running it fopr SIX hours?