QUESTION: As I inspect a septic tank, how do I know when the baffles need to be replaced?ANSWER: Through the years, I have had numerous discussions with service providers about concrete tank corrosion problems, including baffle deterioration – typically focusing on the outlet baffle.In older tanks, the baffles were often cast-in-place concrete. In newer tanks, the baffles are sanitary tees, which allow for an effluent screen at the outlet. Many states and local governments require these baffles and screens for new construction. However, there are a lot of existing older tanks in varying conditions, which makes the timing of baffle
