Which professional master can tell me what the urinal manure water in the building is used for the k

The main gate must be the same, as for the other pipes have no branches! Take a closer look for yourself, if it's buried under the floor! Then it's not clear, it can only depend on the character of the master who installed the water and electricity for you.

It must be separated. Bathroom kitchen sewer pipes can not be connected, otherwise the smell will be flushed up by the pipe when cooking and flushing in the bathroom, the reason is that the drain in the kitchen is higher than the bathroom drain, and the toilet in the bathroom has an anti-odor curve, while the kitchen does not.

When a certain flush air pressure is high above the pressure value (the smell of the toilet drain curve rushes to the kitchen pipe, causing unnecessary strange smell).

The general ones are used separately, and the environment is different after all

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