You can avoid harming your septic system by not using it to dispose of hazardous chemicals. Small amounts of paint, varnish, thinners, waste oil, photographic solutions, pesticides, and other organic chemicals can kill the helpful bacteria in your tank and pollute the groundwater.
Always exercise moderation when using household cleaners like bleach, disinfectants, drain cleaners, and toilet bowl cleaners. Following the instructions on product labels is crucial for your safety, but excessive use of these powerful cleaners can pose severe risks to your health.