O11-D S1 Pump Suddenly Very Loud

Question

So I've had the O11-D Distro plate for about a month now, and the pump has started to sound very loud, see attached videos below. The strange part is that some days it runs perfectly normal and quiet, but other days it makes this loud brr-ing sound the entire time its on.

Loud Pump

Quiet Pump

Answer 1

Hello Frozen Stove,

From the video, it seems that the pump was stuck by the bubble, and made the noise.
Please remove the bubble as much as you can, or turn down the speed of the pump.