I have a rental income property with a septic tank, it’s amazing what people flush. They have no idea some measure of it ends up in the tap water.
“They have no idea some measure of it ends up in the tap water.”
The septic holds solid waste that often decomposes with the residue having to be periodically pumped out. The water goes underground and is hopefully purified by mother nature in the septic field and then goes to ground water where the pump pulls it out of well and back into the house.