Kitchen Sink Emits the Rotten Egg Smell when BATHROOM Sink is Running!

[JoeDiego]

Hi folks,

Was hoping you could shed some light on this problem so I can work out how to solve it.

My downstairs kitchen sink emits the rotten egg smell (which I've googled and learnt is sulphur deposits) when the upstairs bathroom sink is running hot water!

I've googled this problem but all the answers seem to be specific to a particular sink. I can't find a similar one to this where the upstairs sink is causing the downstairs sink to smell!

The smell isn't emitted when the shower in the bathroom is being used, and it's also not emitted when I actually use the kitchen sink. It seems solely to be when the bathroom sink is in use.

Any ideas?

Thanks

 

[stevetheplumber]

sounds like its piped wrongly and allowing the trap to be emptied when the basin runs any pictures of pipework

 

[Phil]

Yes, try to post a picture of under then kitchen sink, is it a bowl and a half bowl?

 

[PlumbBobBob]

I agree sounds like pipework on the waste side needs looking at

 

[JoeDiego]

Thanks for responding folks - the kitchen sink has two separate basins and plugholes, the pipe runs straight through the wall into the drain.



It's the grey pipe - so the smell must be running up that pipe and through the sink - but why does running the bathroom sink cause that smell?

 

[stevetheplumber]

there is no trap on the sinks so smell from drains can come up the pipe you need to get the builder come kitchen fitter back and explain what an idiot he is

 

[JoeDiego]

Haha thanks Steve. I thought the piping looked strange not to have a u-bend. We just moved into the house a few weeks ago so no idea who did the work. Is it something an amateur can correct or am I best off calling a plumber?

 

[Riley]

Something along these lines would do it. Maybe without spigots

http://www.mcalpineplumbing.com/traps/sink/sink-plumbing-kits/1-189-double-bowl-sink-kit.html

 

[ShaunCorbs]

you have two options try and get a trap to fit the existing install (which is going to be hard)

or get a plumber to re do the waste and re drill the hole through the wall lower

 

[stevetheplumber]

ive just realised theres something on the pipe outside cant see what it is in picture but its black? if that is a tee and the pipe carries on up to the bath room its all wrong and really you need a plumber to re run it all

 

[ShaunCorbs]

ive just realised theres something on the pipe outside cant see what it is in picture but its black? if that is a tee and the pipe carries on up to the bath room its all wrong and really you need a plumber to re run it all

Gaffa tape to hold the pipe (no clips)

 

[gassafe]

What a Bodge up...

Best to get it fitted with the proper traps, a Mcalpine waste kit would do the job or you could try & fit an inline Mcalpine running trap that would stop the smells backing up into the kitchen