MOTM

I'm stuffing compenents in all my boards for the first pass solder/wash.  I 
normally mount electrolytic capacitors firmly up against the PCB.  After 
reading about the problems of organic flux residue, I am wondering how I am 
going to clean under under them.  Does it matter if I can't clean under them? 
 Or do I need to keep a centimeter or so space, so I can clean?  Thanks for 
any help.

BTW, this business of having to wash boards within 2 hours of soldering is 
seriously screwing up my assembly line building techniques.  Is the only 
reason we are not using good old rosin core 63/37 solder because it leaves 
unsightly flux marks?

-Elhardt