Does shower water go into the septic tank?
Regulations require that all water from inside the house go through a septic system, either on site or at a municipal treatment plant. This includes showers, toilets, laundry systems, kitchen and even swimming pools – because of the chemicals.
Water from roof gutters should be the only water leaving a property through the stormwater drains.
Once again, it is best to check your local council regulations for their recommendations in your area.