What do you do if you have added a third bedroom after having a septic system installed for a two bedroom house?

If you've added a third bedroom to a house that initially had a septic system designed for two bedrooms, you should consult a licensed septic system professional or engineer. They can assess whether your current system can handle the additional load or if an upgrade is necessary. It's also important to check local regulations, as you may need to obtain a permit or have the system inspected to ensure compliance. Upgrading the system may involve expanding the leach field or increasing the tank size to accommodate the increased wastewater flow.