New zanussi washer/dryer Z716WT83BI pump

Hello Steve. The pump sounds very noisy, but my problem is that most recording devices use automatic level control which compresses the audio and makes it sound louder. So it's difficult to judge exactly how much noisier than normal it is - if at all. There is an accompanying knocking sound though. This regular knocking sound appears to be coming from the drain hose, which can clearly be seen writhing about. The first thing you need to do is secure the drain hose properly so that it is not knocking about and tapping on the back panel etc.

If it has a clip designed to clip to the back of the washing machine put it back in the clip. If not you may need to use cable ties or some other device. Sometimes when the washing machine is pumping air a drain hose can move about in a regular rhythm and that is definitely contributing to your noise. Other than that, the noise that I can hear is the normal noise of a washing machine water pump when it has drained away all the water and is just pumping air. It does sound very loud, but that could easily be the automatic level control on the recording.