Coffee Grounds In Sink Disposal. Secondly, you can pour hot water through your sink’s pipe for disposing of the coffee grounds. Wait an hour and then pour a pot of hot water into the sink.

They also serve as a nice fertilizer for your garden if you have a green thumb. Over time, as you flush more grinds down the sink, they will continue to build up and will eventually cause a blockage. Follow it with half a cup of plain white vinegar.




