Fuel Injectors

[John Beggs]

Does anyone have any info on what is involved with having injectors 
backflushed? The injectors are removed and ?. Can this be done as a DIY, 
what is the solvent? I understand that Bosch injectors have a microscreen 
inside the injector and add to the tank cleaners or power cleaning does not 
clean the screens.  (The screens are to trap any debris before the gas gets 
to the tip and thus prevents premature wearing.)   
Thanks.