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Let's observe for a few days. Turn off all the water pipes and faucets, look at the water meter readings, and then look at the water meter readings after a while, if the water meter readings become larger, it means that there is a water leak, and the water meter does not change, it means that there is no water leakage.
This can only mean that your house is so dirty that the birds have come to make a nest. >>>More
The rat fell in.
In order to prevent dust from falling, it is better to cover it.
Look carefully and you will find the source, clean the dead corners well, and ventilation is the most effective.
As long as it's your own home, of course it's okay, and it's a house that no one lives in, no matter who you don't care, the key is that there is no need to care.