1. Before use, you should select the appropriate "plug" based on the size of the blocked pipe and the switch to install this product. The product provides 4 different sizes of "plug", and for toilets, you should choose the largest "plug" or the second largest "plug".
After installing the plug, you can begin to inflate the gas cylinder. The method is: hold the cylinder firmly with your left hand, and pull the air rod with your right hand to complete multiple full strokes at least 15-25 times until you can't press any further.
3. Tightly press the plug over the small water inlet to ensure a tight seal. If the seal is not complete, add water to cover the nozzle. At this point, you can operate the plunger to generate airflow, which should dislodge the blockage in the pipe. If the blockage is not cleared after one attempt, repeat the process.

Notes: The suction cup mouth should be tightly sealed against the toilet bowl or pipe opening, or it will leak air. You can add some water to allow the suction cup to be completely submerged in water.