Why is there a small shower head next to the toilet in Cambodia?

Prevent paper towels from clogging the toilet.

Generally, the more north you are, the higher the chance of the toilet being clogged, and the cold weather is an important reason. >>>More

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Storage room, or refrigerator if the size is enough.

It's not a waste of water.

1) The water valve is raised, and the water stored in the tank is flushed out to flush out the dirt in the toilet, and the flushed water and dirt are flushed through the U-shaped pipe into the drain. Due to the different number of dirt, there are 2 options for flushing water, so the flow rate is different when flushing, and the amount of water left in the toilet is unpredictable, there may be less water, the water level in the toilet is lower than the top of the U-shaped pipe at this time, and it cannot play the role of water sealing, so there is a small pipe connected to the overflow pipe mouth on the toilet inlet valve, and a part of the water flows into the toilet through the overflow pipe when the water is inlet, and the water surface is raised to the height of the top of the U-shaped pipe to form a water seal, so that the odor in the sewer pipe can not escape to the toilet through the U-shaped pipe. >>>More

Because without this overflow pipe, once the float water level control switch is not turned off, it will overflow all over the toilet floor. In that case, it would be better to overflow into the sewer. It is a spare item when it fails accidentally, and it is found that the valve is leaking and repaired quickly, and it is really not possible to close the water inlet angle valve, which is a convenient means to use. >>>More