Past discussions on excessive corrosion around outlet baffles on concrete septic tanks prompted a recent conversation with a septic professional who noted that not only was he seeing excessive corrosion around the outlet baffle, but also in the distribution box. The system included an effluent screen at the outlet.I have received a number of similar reports from around the country (up until now mostly from Colorado, New Mexico and Arizona) about distribution box deterioration along with deterioration at the outlet end of septic tanks.For the distribution box situation it seems that effluent screens may be inhibiting the ability to vent
