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1. You haven't done a good job of separating dry and wet, there is no good way, you can raise the bathroom door steps and then do waterproof treatment at the door steps.
Clean your sewer pipes often, and if you block a lot of things, it will also smell. Or your own towel emits a foul, musty smell. Take it out often and dry it. Waste paper in the bathroom should be cleaned up frequently and ventilated. >>>More
There must be something blocked in it that you can't dredge yourself, so it's best to call a professional to help you unblock.
Don't be afraid if the toilet is blocked, pour in these two things, flush the water, and it will be clear immediately.
There is a methane overflow in the toilet in the bathroom, mainly because the bottom seat is not sealed well, and the air is leaking. . . >>>More
The best way is to dredge it with professional workers, and if you are reluctant to do so, you can directly hook it with a wire.