Under the side of the water tank is the interface of the inlet and outlet pipes. You can directly connect the water pipe to the bathroom at home. Water supply and hot water are shared.
On the side of the water tank are the interfaces of the ventilation pipe and the overflow pipe, which are connected by a tee. The overflow pipe is connected to the house below. Once the water is filled, the overflow will remind. you must turn off the water supply tap. Simply connect a piece of vent pipe to the top of the tee.
The upper and lower joints cannot be connected in series and must be disassembled.
The following is a reference image. There are some differences in the layout structure of the water tank interface. Some overflow ports and vents are shared, others are separate, and some overflow pipes extend from the conduitinternal water ite. at the bottom of the water tank to the top of the water tank liner.