Liquid products that can be used? Almost anything. Which ones will work? NONE. If the main line is not plugged, remove the toilet and extract the obstruction, unless you have roots growing up through the floor and into the pipe. In that case cut them off at the floor line, remove them from the pipe, and pour lots of salty water down the holes in the floor flange.: Clogged toilet. i used a snake to unclogged it but did not work. please advise on some of the best liqiud products that can be used, : Thank U.