PEN wiki

Pass clear plastic tubing through a water bottle filled with cold water and pre- vent leaks with super glue. If your condenser is under-performing (i.e. steam comes out), coil the plastic tubing so a greater length is in the water. If you condenser is still under-performing or you plan to use it for longer period of time, devise a way to keep changing water inside the water bottle to keep it from getting too hot. Or, submerge this condenser in a trough of water. You could even run the plastic tubing through the sides of a bucket.