Suppose the chamber with hot wires is chamber 2

  1. Switch off HV on the Ch2 for 15-20 min.
  2. During this period of time, check alcohol level in the bottle. it has to be between two lines on the bottle.
  3. After that flush the chamber with alcolol:
  4. after 20 minutes, raise HV slowly at about 50 Volts lower than the usual value.
  5. Check chamber current, repeat if not improved.


  1. Use the syringe through the little hole on the lid of the bottle to add the alcohol.