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Most tap water is a pipe (only one meter is a pipe, and two meters are separate). The drain is a toilet, the washbasin is a pipe (a sewer pipe in the same bathroom or near the toilet), and the washbasin is a separate pipe.
Angle valves, mixer faucets, hoses, inner and outer wires (for surface-mounted pipes), inner wire elbows, outer wire elbows (for concealed pipes), tees, elbows, pipe clamps, expansion gong wires, rubber stoppers, raw material belts.
Those who run in the water are afraid that the water will run to the ground when the water is full.
The washbasin and squatting sink in the bathroom share a sewer pipe, and the water from the washbasin is directly connected to the urinal.
So that the gas in the insulation layer can be discharged in time. >>>More
Of course not. A floor drain is an ordinary sewer (this sewer is usually discharged directly into a river or to a sewage treatment plant), while a toilet is a toilet (this sewer is connected to a septic tank).