I finally got my used knop calcium reactor hooked up and running this afternoon. A little DIY and had it running in no time. Set the PH controller to 6.5 slow drip on the effluent side into the sump cup where the controller monitors the PH in the reactor. Thus turning on and off the Co2 that is fed to the reactor. Calcium @ 440/////DKH 18.2 out of the drip cup......Calcium out of the main tank @ 440 and the DKH @9.8 not much change on the calcium or DKH since the last tests but tommarow will tell the tale.
