The toilet pipe was changed to renovate the house, and the downstairs one has not been sold, so I si

The drainage pipe of the first floor of the general high-rise building is laid independently, the second floor is the lowest drainage pipe mouth of the high-rise building, which is equivalent to the first floor of the multi-storey building, as long as the drainage main pipe below is not blocked, the second floor will not be backwater, the main pipeline downstairs is blocked, the water discharged upstairs will definitely come from the second floor of the water, the reason why this design is because the upper drainage pipe of the high-rise building is higher when the height is higher, and the water flows to the first floor will have a great impulse, and the falling water can not be discharged in time. There will be an instantaneous increase to the riser buffer above the horizontal pipe, when the water flow can not flow away in time when the water is at its peak, the water will be reversed from the first layer of the nozzle, so the bottom drain will be heightened, and the closed pipe will be raised to leave a large water buffer space on the upper floor, and it will not be reversed from the lowest drain outlet, so the lowest drain nozzle is set on the 2nd floor

Find a property, you can't occupy public space without permission.

These toilet pipes are infrastructure, if there is damage, then it is the collective responsibility, if there is no one on the ninth floor, only you have to find someone to repair it.

One is to negotiate with the landlord, and the other is to ask the property to help you coordinate! It has to be repaired!

Definitely, there are a lot of E. coli in the water, it is recommended to fix it quickly, otherwise you will have diarrhea if you eat too much