Study Material 1900-0700 October 7, 2013 / Routine Shift Duties. Added 1 pt. Halochlor C to tower #3 basin and circulated. Changed Halochlor C pump setting for the yard tower from 250 to 320. Un-plugged Oxykor S1100 pump at 02:30 for remainder of shift. Changed pump setting from 75 to 40.