Pouring boiling water down a garbage disposal should be done with extreme caution or avoided entirely if you have vulnerable PVC plastic drain pipes or a ceramic sink. While boiling water helps melt and flush away congealed grease and minor food sludge, thermal shock can crack ceramic sink basins and weaken or warp older PVC pipes and rubber slip-joint washers over time. Plumbers generally recommend using hot tap water rather than rolling boiling water for routine flushing and cleaning.
1 votes
Marked as accepted