noise from appliance waste

[lizzie]

Why spend extra time and money making sure appliances are low noise A rated etc for open plan area then find the plumbing sounds like world war 3 when the dw and wm are draining!  Been like this since day one but only now getting the time to focus on issues like this.

 

My utility and kitchen wet areas are back to back and they have plumbed waste for 2 sinks, dishwasher and washing machine all into the same point under the kitchen sink.  Inside the cupboard the back wall has no boarding its just open insulation, with exposed pipes, that cupboard has no back either (Italian design).  Any thoughts on how to get this a bit quieter without dismantling all the plumbing...which would be impossible now anyway.

 

If this is better placed in another thread please can you move it wherever I wasnt sure where best to put it.

[wozza]

Hi Lizzie,

 

Where is the noise coming from? What type of noise is it? Can you post a video?  When the WM and DW draining are they causing the sink waste to gurgle?

[Onoff]

Would an anti syphon trap(s) help?

[lizzie]

24 minutes ago, wozza said:

Hi Lizzie,

 

Where is the noise coming from? What type of noise is it? Can you post a video?  When the WM and DW draining are they causing the sink waste to gurgle?

Ok will get one when washer on tmw. Its just finished today so too late. Its very loud glugging and gurgling noises

[lizzie]

16 minutes ago, Onoff said:

Would an anti syphon trap(s) help?

Can you have one on each...as far as I know I have 4 wastes funnelling into one pipe.

[wozza]

If its gurgling when the WM and DW are draining then its probably air being drawn through the trap making the water gurgle.

 

You could try the following:

Anti Syphon trap - designed to stop the water being drawn out

Mac Valve - uses a "Silicone Valve instead of water

Vent the pipework to a soil stack or try a small AAV.