Smell in New Extension Problem

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  #1  
Old 05-11-14, 01:02 PM
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Smell in New Extension Problem

10 months back I extended my old kitchen/diner area to create a bigger open plan space and add a downstairs shower room with toilet.

Existing gullyís had to be made redundant, complete new pipes for the plumbing and waste were installed and a new man hole was added into the garden so we didnít have to access the shared neighbors one (which they had built over).

Unfortunately a Ďfriendí did the job for me who I thought at the time I could trust and would not let me down, however 10months on and the problem I am about to tell you about has still not been resolved.

Since the works were complete, within the first couple of weeks of moving in we smelt a eggy smell in the kitchen dining area coming from behind the washing machine and boiler.

We thought it might of been a one off but basically since them 2 weeks, nearly every few days we have had smells on and off coming from behind the washing machine, under the boiler and bathroom.

The plumber after multiple visits (sub contracted from my Ďfriendí) were unable to resolve the issue.
Initially they thought it was a trap issue and added traps to the boiler and washing machine (prior to the trap for the washing machine, they simply had a downward black pipe that the waste pipe of the washing machine fell loosely into).

Anyhow the friend was difficult to get a hold of and kept making empty/let down promises and a long story short, after 8 months of pushing they finally agreed to come down and remove two tiles near the washing machine to see if the old gulley was the issue (this was 5 weeks back).

Since then the smell is definitely noticeable from the removed tiles area, which is either near or where the old gulley was located.

I have had cctv drain surveys to look at my drains (at my own expese)but they were unable to find something that would indicate what the issue may be apart from a possible old redundant drain that looked like it had an orange seal at the start of it with plastic in front of it (the image didnít indicate if it was an issue but could potentially be).

There is also now a case of rats/mice which could potentially be entering from the cellar or the drains (were not sure as the cctv report didnít indicate any direct entry points). We can hear them scratching in the walls every other day.
There is smell of rats urine as well and we have seen rat feces in the insulation on the insulation where the tiles have been lifted (the smells are coming from the same areas as the other eggy smells inc the new downstairs shower room).
The property had no previous history of these rodents and they are only heard and seems isolated to the new extension areas (please see pic).

I have been in touch with the owner of the property who lived in the house prior to selling and according to him, their was an eggy smell from the old kitchen area (exit point from behind the washing machine).
However as we have had completely new pipes installed, we believed this would not be the cause of the issue.

The building works were done with planning approval and building regs and all certs were supplied on completion.

Ideally I do not want to get the council involved in getting this issue resolved due to the history of friendship and making this more complicated.

Any advise of what we could do to rectify this?
We have spent an excess of 70k for all the works, furnishings, flooring etc and we canít live in this situation any more as we have a little baby and these smells are really getting to us!



Picture of works - https://www.dropbox.com/sh/bcbapl9d1...Y9bdLPT1oxrt-a
 

Last edited by chris101; 05-11-14 at 01:24 PM.
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  #2  
Old 05-11-14, 04:14 PM
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Was a trap abandoned along the way or is a trap missing where there should be one?
 
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Old 05-12-14, 12:55 AM
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It was initially forgotten. So the 2 pics show before and after (after is with the trap).
 
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Old 05-12-14, 10:34 AM
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I see the added trap for the washer, but what's the white pipe going into the side after the trap? Is that sealed? That pipe should likely be going into the trap-side and not the sewer side.

Do you have any floor drains? I didn't see any in the pics, but it could be an issue. Also, do you have any vents going up to the roof?

Also, a rotten egg smell can come from natural gas or propane leaks. I would make sure that's not where your issue lies.
 
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