Inquire about the leakage of the toilet in the upper and lower floors

I don't know the structure of the bathroom and other conditions in the building you live in.

Drainage on the same floor: The bathroom in the embryo room is a 'sunken' (pit), if there is a leakage: the possible reason is that the waterproof layer of the pit has failed.

Lower drainage: The drainage pipe is in the lower ceiling, if there is water leakage: possible causes, water seepage from the floor slab, water seepage from the pipe (joints, manholes、、、

As for the leakage location, it is necessary to check it in detail.

As for the responsibility, it is generally the upstairs residents, special circumstances: the downstairs roof construction is indiscriminately punched and seeps, the top drainage pipe is damaged and the water seepage, the responsibility lies with the downstairs residents, due to the structural damage of the floor slab and water seepage is solved in many ways.

It's your responsibility, hurry up and find someone to fix it! There is a limit to the waterproofing of the bathroom, and you should keep in mind the scope and degree when using it.

Property or professional hydraulics can be commissioned to inspect and repair.