gibson981
New member
I am running a GEO 612 Ca reactor. I am cleaning it for the first time after almost 8 months of operation. I have it taken apart right now. I have been running CRM media this whole time and I have a new container of media to refill it. There is still about 2 pounds of media left in it. Should I reuse that old media? If so, should it go on the bottom of the fresh media or on top? Also, I am going to recalibrate the pH probe. It is currently sitting in a cup of water to keep it from drying out. Should I clean the probe? If so, should I do that by simply swirling it in vinegar?