Smell from Kitchen Soil Stack!

[Diy592]

Hi,

Looking for some advice, I am getting a drain/sewage smell coming from my kitchen soil stack. It’s always been there since I moved in only a few months ago, I had a new kitchen put in and one thing I remember is the drain pipe got bashed about a bit when the kitchen was getting done.

The smell is definitely not coming from the sink trap, I am planning on opening up the boxing around the pipe this weekend to see if I can see if the connections are good.

If the connections are good I was planning on using some expanding foam and attempting to seal around the bottom of the pipe in case the smell is rising from the dwellings below, then siliconing the boxing up to try and prevent the smell. Is this a good idea?

I am on a top floor flat and there are two flats below me, I can’t see any blockages on the soil stack vent on the roof.

Any advice would be great?

 

[Diy592]

Picture of boxing.

 

[king of pipes]

Post a better picture of the way your washing machine waste is piped where does the grey flexible pipe go? Kop

 

[Diy592]

Hi,
My washing machine waste go's into a connection on the sink waste and is secured tight with a clip. My washing machine is to the left of the above picture and my sink trap to the right.

 

[rpm]

Hi,

Looking for some advice, I am getting a drain/sewage smell coming from my kitchen soil stack. It’s always been there since I moved in only a few months ago, I had a new kitchen put in and one thing I remember is the drain pipe got bashed about a bit when the kitchen was getting done.

The smell is definitely not coming from the sink trap, I am planning on opening up the boxing around the pipe this weekend to see if I can see if the connections are good.

If the connections are good I was planning on using some expanding foam and attempting to seal around the bottom of the pipe in case the smell is rising from the dwellings below, then siliconing the boxing up to try and prevent the smell. Is this a good idea?

I am on a top floor flat and there are two flats below me, I can’t see any blockages on the soil stack vent on the roof.

Any advice would be great?

Guess removing the boxing is the start point but wouldn`t go using expanding foam as that is just masking the fault.

 

[Sharp Point]

I get smells from time to time from our own home kitchen sink, food residue collects in a kink on the flexipipe between overflow and the waste. I have to remove it once in a while to flush out the rotten food particles.

 

[Diy592]

Thanks for the reply’s I will see what’s going on inside the boxing this weekend.

I don’t think it is the WM waste pipe as the smell existed before WM was put in.

I don’t see any other option if connections are good other than to seal the around the pipe, don’t think neighbours would rip up kitchens for smell that’s only effecting me.

 

[Riley]

But you could seal all round it and still have a smell. Then you have a foamed up soil pipe and still no answer find the cause

 

[rpm]

40mm waste pipe pushed through hole in the soil stack and sealed with silicone anyone?

 

[Ric2013]

I wouldn't try to seal the boxing up as you'd be masking a problem in your own flat, but I would definitely make your house airtight from other dwellings, and if that means (fire resistant grade) expanding foam around where the pipe passes through the floor, so be it.

In any case, there's surely no need for a large cavity for mice to run up, and to allow fire and fumes to pass from house to house?

At least if that doesn't cure the symptom, you'll know the fault is within your flat.