Abstract: A garbage disposal treatment system, preferably for use with a double basin sink comprising first and second basins, a garage disposal mounted under the first basin and a sink drain pipe mounted under the second basin and having a P-trap is provided. The treatment system comprises a refillable reservoir for holding sanitizing liquid, an electrically powered pump for pumping the liquid into the garbage disposal so that the liquid impinges on the garbage disposal blades and splashguard, and switch for activating the pump. The treatment system may also pump liquid into the sink drain pipe of the second sink.