Just purchased my house last year and it came with an inground 28k gallon inground pool with inline chlorinator (downline from the heater) I had a professional come out to make sure the pool and equipment was in working order and everything passed with A+ rating. However, a note left by the previous pool company who cleaned the pool regularly noted "don't bother using the chlorinators they are bad for pools". I've done my research and cant see why it would be bad unless the equipment was faulty. Any insight from TFP community would be greatly appreciated!