I come across ultrasonic cleaners occasionally, but I don't know how they feel or look while operating. How do you check them for operation? I know you can't run them dry. On Wed, Jun 11, 2008 at 1:19 PM, Artie Jones wrote: > When it begins to show > signs of not working well, fill the ultrasonic bath with tap water, > and drop the syringe in-needle and all. I used that sample from EFD > for 8 years, with no special treatment other than the ultrasonic bath > from time to time. > > As far as I know, EFD still offers teh same enormous sized 'sample' > for free, although I haven't re-ordered yet. > > Enjoy. > > Art > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist