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Anonymous users2024-01-24Ultrasound can't be heard, at least not by humans. Toilets, I guess it's from the water pipe, there are bubbles in the water pipe, when someone else uses water, the water pipe will vibrate, the bubbles inside burst and make a sound, the water vibration drives the water pipe to vibrate, making the sound you hear, but the water pipe is generally a buzzing sound, Zizi may be from equipment such as a transformer, or the faucet is not turned off, there will also be a Zizi sound, personal preference for water.
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Anonymous users2024-01-23Ultrasound is generally inaudible except in people with special hearing. And I haven't heard of electricity making a sound.
It could be the sound of water droplets or some other sound.
Maybe it's your own psychology.
It's definitely not ultrasound, it could be a problem with the building or downstairs
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Anonymous users2024-01-22Your toilet plumbing system is leaking! Check it out.
I know Prometheus has water purifiers and garbage disposals. >>>More
It's ok, it's good, it saves time and effort.
Aren't there exhaust fans in general bathrooms? Remove the exhaust fan. Look inside and you'll know what's going on!
This should be the radiator has air inside, and the flow of water inside will make a sound, so you can find someone to exhaust the exhaust and take a look.
It should be cockroaches My family has been more than 2 years If you can not be stupid and have no pets at home, you can use a large number of cockroaches to kill drugs Close the doors and windows N hours later, come back Open the windows Open the windows to ventilate the sewers when they are not in use or make U pipes It is like a toilet structure There are water cockroaches in the U pipe If you are afraid of trouble, you can buy cockroach medicine directly and sprinkle it in the corner When cockroaches walk in the corner.