Sewer gases kitchen sink

[Richieduliban]

I have installed a new sink but sewer gases are coming out of it or the piping and smelling the room. I hear it gurgling occasionally too.

Attached is a photo of the setup. The left P trap is for the dishwasher but smell seems to be coming from the sink. Anything that seems obviously wrong at first glance?

 

[Notch7]

I expect your waste layout is wrong and water is getting siphoned out of sink or dishwasher trap.

 

[footprints]

Might well be one trap syphoning out the other doesn't look too bad though. Does the sink have an overflow? The gurgling may well be from your condensing boiler empting through the small pipe on the right which I guess is the condensate pipe.

 

[oilboffin]

Put a Deeper trap on the pipework and it will stop the smell.And put a better trap on the washing machine
pipe aswell.Bob

 

[Lower]

The sink trap looks shallow and might be being pulled by the dishwasher when it empties. I'd check that the pipework is draining freely and then put a deeper trap on the sink.

 

[just pumps]

Why not run the washing m/c for a cycle then see see if the trap has been sucked out before changing anything?

 

[Hugh Jaleak]

What a contraption! I'd ditch the grey stuff, fit a decent P trap on the sink, and reconnect to the waste with a couple of bits of pipe and a bend. Fix standpipe to the wall while you're there.

 

[Richieduliban]

I tried a deeper entry to the trap and it didnt help. Shall I try an anti siphon trap like this:

https://www.screwfix.com/p/mcalpine...hhcEHK86X_5oRLyHhJjoisUnn5cSsI_EaAoz1EALw_wcB

 

[RayCaister]

Remove stack and grey pipe trap. Fit this ... https://www.screwfix.com/p/mcalpine...mm/81714#product_additional_details_container Washing machine outlet fits to spigot so one trap does it all. Quality parts.

 

[Lower]

Remove stack and grey pipe trap. Fit this ... https://www.screwfix.com/p/mcalpine...mm/81714#product_additional_details_container Washing machine outlet fits to spigot so one trap does it all. Quality parts.

That's the way to do it. Both the dishwasher and the sink waste water passes through the same trap so no risk of one siphoning water out of the other.