Reply To: D.O. and B.O.D. Home › Forums › Public Forums › General Plumbing › D.O. and B.O.D. › Reply To: D.O. and B.O.D. 18 Jun 2003 at 8:54 pm #294630 mikeinpaParticipant DO is the dissolved oxygen in the water and the BOD is the bio chemical demand ,which is used to find the bacteria levels in the water
