Soil vent pipe inside flat

[Cristina]

I have just moved in a rented flat (Housing Association) , ground floor in a two storey listed building. The small toilet has no window or external fan, but there is a Heat Recovery Ventilation System and a vent in the ceiling. Due to smell in the toilet, a surveyors visited the flat and uncovered a soil vent pipe (which was encased in a wooden box) terminating in the toilet, 70 cm above ground. He seemed to be concerned about this, (he said it should have been outside the flat), but also by the fact that, been a listed building, it would have not been possible to vent it externally, and was suggesting perhaps sealing the pipe. I am a bit concerned about this and I would like to find out exactly what the regulations are regarding this, and whether this is an acceptable solution. I would appreciate any advice.
Many thanks,

Cristina

 

[walburt]

Hi, don't seal the pipe!!!!! the thing on top is a air admittance valve, to let air in when the loo is flushed. It may be faulty and not sealing properly, letting the smell into the room. Or not opening properly and when you flush the loo it pulls the water out of the sink trap that you have going into the stack. They very rarely go wrong, but like anything in life, nothings perfect.

Cheers

 

[AWheating]

as suggested you probably need to replace the air admintance valve and extend the svp to above the toilet cisterns water level as per regs.

any decent plumber will be able to put it right in a hour or so.

 

[GQuigley67]

as above tell the surveyor to get more training and get a plumber in.

 

[rocky]

As above raise height of sub stack and replace air admittance valve.