Digital BW, The Print

I have flushed with distilled water only, and it worked fine, and I  
have also flushed with distilled water and  had a fatal problem with  
one of the nozzles (all others worked fine).  What the etiology of  
the problem was, I don't know.  One thing about using anything that  
you self fill with is:  if you have a problem, did you inadvertently  
introduce a little piece of crap that wound up clogging a nozzle?   
Doesn't help you to print if you know that you didn't, but it does  
help you to not kick yourself for the poor economy of saving on  
prefilled flushing carts in favor of putting a new head in.

James