Search results

Cheers hugh jalek I think it was 82mm anyway but in a far to large a boxing. I will reinstate the natural vent. Thanks for tips.

Sorry to Hijack the OP. I have a similar sounding problem. I removed a natural air stack leaving an AAV in the loft. I took some advice from a few people before I did this. Now on occasion we have a strong sewerage smell. I have put another 40mm AAV into the system. Which seems to have reduced...