I have two Thermo electron processors that are set up to have the 10% formalin changed every 4th run.  We run about 100-125 blocks on each processor every night with one hour in Fix1 and another hour in Fix2.  I was just putting my feelers out there to get input from other labs that may have the same equipment and what their rotation schedule is. 
Thanks 

Kimberly Secrest HTL, QIHC
Histology Technical Specialist
West Virginia University Hospital

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