Unblocking a badly blocked toilet requires a systematic approach and the right tools. Here's a step-by-step guide to help you:
Stop the overflow: If the toilet bowl is close to overflowing, turn off the water supply valve located near the base of the toilet or remove the tank lid and lift the float to stop the water flow.
Use a plunger: Insert a flange plunger into the toilet bowl and create a tight seal. Push down gently, then pull up forcefully to create suction. Repeat this motion several times to dislodge the blockage.
Try a toilet auger: If the plunger doesn't work, a toilet auger can be effective. Insert the auger's flexible cable into the drain and slowly turn the handle clockwise while applying gentle pressure. This helps to break up and remove the blockage.
Chemical drain cleaners: If the blockage persists, you can try using a toilet-safe chemical drain cleaner. Follow the instructions carefully and use caution.
Call a professional plumber: If all else fails, or if you're uncomfortable performing the steps yourself, it's best to call a professional plumber. They have the expertise and tools to handle more stubborn or complex blockages.
Remember to always use caution and wear protective gloves when dealing with a blocked toilet.