The following evening, it made a buzzing sound (presumably, it was a gearbox that turned the drum). The first night that we used the device, we were both able to get a good night's sleep, even though it only had two speeds (the fan made some noise). I was roused from my sleep by a low-frequency rumble on the second morning of the second night. At first, I believed that the people on the street or in the neighborhood were buzzing. He positioned his ear so that it was close to the opening through which water is poured. The sound emanates clearly from that location and is unaffected by the speed of the fan. I'm frustrated because. The design of the item as well as the operation of it were both quite impressive to me (you can manage the device remotely through the application). However, if one considers the amount of testimonials that contain noise, it is clear that this issue is not an isolated one. It would be preferable to let the regular ultrasonic gurgle continue as opposed to this hum (I tried to grease the WD gear, but nothing changed). I'm taking it back.
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