You have to go to the health dept for drawings of septic systems.
It could be grey water run off. I had a neighbor years ago that ran his washing machine and dishwasher to a separate line that went to a buried drum. It stayed wet there and did stink although it was not toilet water.
It could be grey water run off. I had a neighbor years ago that ran his washing machine and dishwasher to a separate line that went to a buried drum. It stayed wet there and did stink although it was not toilet water.
