There is some "self cleaning" nozzles for wet processing
     equipment available that are supposed to clean themselves in
     the event of a clog or when they are shut off. 
        Has anyone ran these nozzles in an etcher for any long lengths
     of time??
     
     How did these nozzles perform??
     
     
     I'm curious.
     
     Thanks in advance for any responses.
     (I would greatly appreciate any feed back from fabricators of PCBs.)
     
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