A heavy-duty flange plunger is often the most effective tool for clearing a toilet blockage without chemicals.
Inhaling the fumes produced during the reaction can irritate the lungs and throat.
Caustic soda can unblock a toilet effectively if the blockage is purely organic and other methods have failed. However, due to the high risk of chemical burns, pipe damage, and personal injury, it should be considered a . For most homeowners, a flange plunger or a toilet auger is safer, cheaper, and equally effective. If you do use caustic soda, strict adherence to safety procedures and PPE is non-negotiable.