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Anonymous users2024-01-24Pry it up or pull it up with a tool. The return spring may have corroded and broken. Turn off the water valve and open the lid to see if it can be repaired. If it doesn't work, change it.
Remove the back cover of the toilet bowl and turn it counterclockwise to check for foreign objects in the gap between the circlip sleeve and the button. If there is no foreign object in the gap between the surface, press the button with your finger to feel if there is still a slight rebound force, and if so, insert a thin wire into the gap and stir around to stir the foreign object trapped in the middle. >>>More
The button cannot be recoiled, please reset it manually after pressing.
As for what you said is full of water underground, this may be that the outlet of the toilet is not aligned with the mouth of the sewer pipe, and the glass glue around the toilet is not sealed, the solution is to open the toilet tank lid and press the button with your hand in a few flushes, and then wipe the ground dry and re-glue it.
Sometimes the water may be stopped, but if the water is normal and there is no problem, and it is like this for a long time, then you need to check it.
A few more gentle presses will snap it up.