We installed the Septic Assist in our new house in 2002. It lasted 19 years and developed a small leak. We replaced it with the Evolution Septic Assist. The new one is much quieter than the old, but one can't complain about an appliance lasting this long without a problem. I would recommend this disposer to anyone with a septic system. We rarely put a lot down the disposer to prevent any problem in our septic system, but this certainly works fine.