sounds like you have been through the "drill" with this one. Did you already
test the solutions with a hydrometer & carry over contamination? If the lines
are clogging, I would guess things must be co-mingling, intermixing and being
flushed back into another station. If it skips stations, well
Hi HR,
Does your processor request a dump when the first alcohol reaches a critical
level?
If yes, make sure that you are only using aqueous solutions in your fixative
stations (otherwise, if the last "fixative" station is an ethanol solution eg
FAA, then the critical specific gravity won't be
I am also at a loss. The unnamed manufacturer seems to have produced an
unreliable machine, except for the initial 2½ years it worked fine. I also
agree with you that if anything the tissues would be over-processed with your
protocol. Now if your whole protocol is the same (including fixation) a
