Copperopolis portable potty rental provider? Water from your garbage disposal, dishwasher, sinks, toilets, showers and washing machine all enter the septic system. Therefore, it is crucial to watch what you flush or pour down your drains. Never put any of the following items into your plumbing system: Cooking fats or other grease, Disposal wipes (even the ones labeled flushable), Disposable diapers, Coffee grounds, eggshells, or nutshells, Sanitary napkins, tampons or condoms, Paper towels or rags, Paints or chemicals. Another important factor in maintaining the life of your septic system is the amount of water entering the tank each day. Too …