Afternoon all, as always can never find an exact existing thread / discussion where I dont feel like im making one too many assumptions.
Can I get a quick sense check on the below, always wanting to work 1 step ahead, eventually planning to add an en suite to the loft conversion. Got the perfect opportunity to set myself up for it now whilst re-jigging the bathroom and adding shower niches.
Assume all soil 110mm and falls and gradients correct.
Existing soil stack set up- Open vented above roof line
Proposed change - Everything blue is external.. all yellow is internal. AAV in void in loft.
Attempt at 3D view of the above...
If anyone has any thoughts on the following it would be much appreciated, couldn't find anything exact in approved doc H.
1. Adding a stub stack with AAV onto the branch... any issues with this? Keep distance of 200mm between AAV and loft conversion wc inlet? (no issues achieving this)
2. I Believe the wastes into the horizonal branch isn't the best of ideas, but at least they are all separate. (currently have issue with siphoning on the inherited waste design)
3. The internal yellow additional 90 bend... use a big old swept bend on this part?
4. Any ideal / necessary rodding points to add in?
5. Yerrrr there's a lot of bends there, trying to think of a nicer way around this without raising the external branch and making the waste connections tricky. It might be possible by rotating the bend that penetrates the external wall.
Can I get a quick sense check on the below, always wanting to work 1 step ahead, eventually planning to add an en suite to the loft conversion. Got the perfect opportunity to set myself up for it now whilst re-jigging the bathroom and adding shower niches.
Assume all soil 110mm and falls and gradients correct.
Existing soil stack set up- Open vented above roof line
Proposed change - Everything blue is external.. all yellow is internal. AAV in void in loft.
Attempt at 3D view of the above...
If anyone has any thoughts on the following it would be much appreciated, couldn't find anything exact in approved doc H.
1. Adding a stub stack with AAV onto the branch... any issues with this? Keep distance of 200mm between AAV and loft conversion wc inlet? (no issues achieving this)
2. I Believe the wastes into the horizonal branch isn't the best of ideas, but at least they are all separate. (currently have issue with siphoning on the inherited waste design)
3. The internal yellow additional 90 bend... use a big old swept bend on this part?
4. Any ideal / necessary rodding points to add in?
5. Yerrrr there's a lot of bends there, trying to think of a nicer way around this without raising the external branch and making the waste connections tricky. It might be possible by rotating the bend that penetrates the external wall.
