Is it possible that the water in the bathroom of room 401 of unit 2 will leak into the bathroom of r

There should be. You go to the decoration market or the building materials market to find out. They will tell you if there is.

If the indoor conditions permit, you can consider using a mobile machine called "water lifter", if you don't know this kind of machine, you can consult the older people in the countryside, more than 30 years ago there were many such agricultural machinery in the countryside, they will know that this kind of agricultural machinery used to lift water from the well to irrigate the farmland, of course, now there is no use I am afraid that I can't buy it, I can only find a way to make it. It is recommended that you use this tool to extract sewage from the basement, considering that you do not use tools such as pumps, even if it is manufactured, it is not troublesome, the parts that are not easy to manufacture are sprockets, chains are ready-made for sale, trays, brackets, etc. are very good for processing and manufacturing, I think this is very ideal, the biggest advantage is that blocks such as feces are not easy to block, because the ring chain is continuously extracted, there is no residue in the barrel, only very little remains at the bottom of the sedimentation tank.

There are student residences.

High fees. >>>More

Whether the grounding wire is connected or not depends on whether the electrical appliance used is a metal shell. Or if there is a leakage, it will hurt people. If there is no possibility of leakage, grounding is not required.

Flowers fly everywhere in the spring city, and the cold food east wind and willow slope.