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If your toilet is new, that's it, it's a problem with the design of the toilet.
I don't know if you have such a problem when you only use to urinate;
It may be that the toilet drain is designed to be narrow or the water bend is unreasonable, and it seems that the only way to replace it is to replace it with a new one.
That's the quality of the toilet. It is that the porcelain light on the surface is not very well done and not smooth enough. There will be such a problem, it should be near those parts every time, and the water in the tank may not be enough or the momentum may not be enough.
The toilet bowl is sticky and the stool is not flushedThe following methods can be used... >>>More
Is it blocked? So it can't be cleaned! There's something stuck in there.
Generally speaking, this is really difficult to define, if the toilet is not in use. >>>More
Oxalic acid is the best, and it also cleans the floor tiles.