Is it possible to vent the 110mm soil pipe via 50mm waste to Durga in the loft, and thus remove the existing external soil stack vent (which is in the way of the new bathroom)?
Detached property, 3 toilets, various wastes, all go into single 110mm soil to mains drain in the road, Existing soil vented to outside at highest point of soil pipe, upstream of the first toilet. Vent pipe is in the way of the new bathroom suite, so it needs moving. No means to easily access external roof to move the soil stack. Thinking to connect 50mm waste into the far left of the image, up into the loft space with a Durga valve to allow air in.
Permitted? I can't think of an issue with it, but I imagine someone else can!
Detached property, 3 toilets, various wastes, all go into single 110mm soil to mains drain in the road, Existing soil vented to outside at highest point of soil pipe, upstream of the first toilet. Vent pipe is in the way of the new bathroom suite, so it needs moving. No means to easily access external roof to move the soil stack. Thinking to connect 50mm waste into the far left of the image, up into the loft space with a Durga valve to allow air in.
Permitted? I can't think of an issue with it, but I imagine someone else can!
