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The drain is not clear, or the water tank is wrong.
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Upstairs is one thing! It also depends on the flush form of the toilet! The water of the straight flush type does not spin either!
The toilet is blocked, it is recommended to buy a toilet plug, it is very cheap and really useful.
When a flush toilet flushes, the flow of water creates a whirlpool that flows down the drain hole. It has been theorized that in the Northern Hemisphere, the water vortex is clockwise; In the Southern Hemisphere, it rotates counterclockwise. And the reason for this phenomenon is due to the rotation of the earth. >>>More
The rotation is due to the deflection force of the ground rotation, and the presence of water is to prevent odors from coming out of the sewer. >>>More
Why does the toilet flush Bu Yutan and not take things; It can be that there is sediment clogging in the toilet trap, and the best and easiest way is... >>>More
The strength of the water flow is not enough.
It may be that the water supply to the tank is not enough and the valve is blocked. >>>More