The short answer is that . While they might clear a hair clog in minutes, they can simultaneously cripple the biological heart of your septic tank. Why Traditional Drano and Septic Tanks Don’t Mix
Technically, yes , but it should be done sparingly and with the specific "septic-safe" formulation. However, even septic-safe chemicals can kill beneficial bacteria if used in excess. drano with septic tank
If you have already used a significant amount of harsh Drano and are worried about your tank, you can help replenish the bacteria: The short answer is that