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This is really hard to do, and the dredge machine can't get out, and if it's not blocked, it can only be done temporarily, and if you're lucky, it may have been washed away.
The basin drain should be equipped with an anti-odor trap, and the hose and PVC pipe interface should also be sealed with silicone.
You can make a layer of asphalt on top of the iron sheet to solve the problem.
I suggest that you add a screen at the toilet door to block the toilet door. The screen should be higher than the door, and it should not be airtight. >>>More
The space is too small, and it will feel very depressing to do it, man.
Whether the "door opening fee" is reasonable mainly depends on whether the property management fee of the residents has been charged, if it is collected, it should not be charged again, otherwise it is a duplicate charge. Since you have called 37 yuan property management fee, then this "entrance fee" is of course not legal, you can first find the property management theory of the community, if not, go to the real estate administrative department to complain.