Just an update, smell reappeared seems to be coming from sink plughole now.... I know trap isn't dry so should I be assuming so e kind of drain blockage and back pressure pushing smells through the trap??
Soily smell in bathroom
- Thread starter chumley0312
- Start date
Entirely possible/almost likely as the AAV wont allow positive pressure out the system, so it looks for the next easiest path for escape.
Next question is why... The usual culprit is a blockage downstream, so when an appliance is discharged the equivalent volume of air, trapped between the blockage and the AAV needs to be displaced elsewhere.
Agree. I'm arranging united utilities to come out. It's a shared drain so it's their responsibility thankfully. If they don't find anything then I'm going to have to reinstate the stack as it should be.
I would insist they do an CCTV Survey whilst you've got them on the case.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
