What cleaning products should I avoid with my septic system?

You can generally use household cleaning products, like toilet cleaner, without harming your septic system. However, you should avoid using an excessive amount of them.
Note that the following products can result in damage to your septic system:

• Water softeners
• Oil
• Paint thinners
• Weed or insect killers
• Cooking grease
• Bath oils
• Kitty litter