Caustic Soda Toilet Unblocker [work] -

Slowly pour a bucket of hot water into the bowl (from waist height to create pressure) or flush the toilet if the water level has gone down. If the water drains away, the blockage is cleared. If it does not, repeat the process or try using a plunger to help shift the loosened debris.

Caustic soda is a toilet unblocker. It is highly effective on organic blockages (paper, waste, fat) but poses serious risks to your health, pipes, and septic system. For most household blockages, a $15 toilet auger is safer and just as effective. If you choose to use caustic soda, treat it with the same respect as a strong acid—because chemically, it is just as dangerous. caustic soda toilet unblocker