Now that I have all my new parts in, I took the time this evening to break down and clean the calcium reactor. The old pump was retired, which looked cooked for a lack of a better description. The plastic had discolored and looked like heat damage from within, and it rattled around the clock. The replacement Mag 7 was easily installed. The acrylic body was cleaned out, new Caribsea ARM was poured in, and all flexible tubing was cleaned or replaced. The pH probe got a vinegar bath. ...