Can you see/find the vent pipe in the loft? Also, perhaps some external pictures with a guide to whereabouts the soil pipe runs would help pinpoint any possible troublespots.
yes I see it in the loft see pic.
the soil
Pipe literally runs down the back of the house in the kitchen (boxed in) into the ground and runs through my kitchen and out at the front of the house. The manhole is on my front lawn.
strange thing. So tonight I did this:
1) taped up sink hole and vent
2) tape up shower
3) stuffed old newspaper to cover the big hole on side of toilet that leaves the soil pipe exposed from the boxing (see picture 2). Yet it still smells. I just can’t figure where it’s from and my nose isn’t picking up position it’s coming from
Pic 3 shows current ensuite setup as you see it’s all boxed in under sink cabinet. The large exposed hole is on the right of the toilet.
do you think it’s worth changing the flexi pipe connecting toilet to soil pipe?