Got a new washer-dryer yesterday, a Hotpoint WDL540 to be exact. When
the machine is pumping water out, the pump make and kind of cyclical sloshing noise. It's hard to describe peoperly, but I can put up a video later of if needs be. It doesn't sound like grinding really, so I'm fairly sure it's not a mechnical problem.
The water drains into an open pipe, just like that last one, and I have positioned the U-bend at a height of 750mm from the floor. The manual says it has to be over 650mm, but under 1m.
Any ideas? I'm aware that it could just be the operating noise, but it's a louder than I would have expected.