True or False: Foundation drains and roof drains may be connected to a septic system if filtered.

The assertion that foundation drains and roof drains may be connected to a septic system if filtered is false. Foundation and roof drains handle stormwater and surface water, which differ significantly from the wastewater that a septic system is designed to treat. Introducing these types of water into a septic system can overwhelm it, disrupt the biological processes necessary for proper sewage treatment, and lead to system failure.

Septic systems are typically engineered to manage only human waste and the gray water that arises from household activities. When non-sewage water is added, it can dilute the effluent and disrupt the anaerobic bacteria that break down waste, leading to ineffective waste treatment and potential environmental hazards.

Thus, the proper approach is to handle foundation and roof drainage separately from the septic system to ensure the latter operates efficiently and remains compliant with health standards.