A few soil stack questions before I order...

[robodelfy]

I can only find 92.5 degree 110mm elbows, and while this makes sense to get a fall, what about when the elbow is used horizontally to go from a horizontal 110 pipe into the house to connect to the toilet? Surely then I just want a 90 degree elbow? If anything the extra 2 degrees will point it further from where I want it to go internally?

Or is it too minimal to matter?

And also, I currently have a 110 straight coupler about 20cm from the ground where the pipe emerges. Can I just leave this or should I replace it with an access socket for rodding?

Thanks

 

[denso13]

Or is it too minimal to matter?

Yes, it will work as a 90° no problem.

Can I just leave this or should I replace it with an access socket for rodding?

You could rod from the top but may be worthwhile putting an access in as you are replacing it all anyway.

 

[robodelfy]

Yes, it will work as a 90° no problem.



You could rod from the top but may be worthwhile putting an access in as you are replacing it all anyway.

So do you not get 90 degree elbows? Are they all 92.5?

yeah maybe you're right, I could replace the straight coupler at the bottom with an access connector instead

 

[Gasguru]

No part of the drainage run should ever be horizontal....

 

[robodelfy]

No part of the drainage run should ever be horizontal....

When I say horizontal, I mean horizontal with a fall....is that ok? As you can see in the photo of my current soil stack

 

[denso13]

So do you not get 90 degree elbows? Are they all 92.5?

It wouldn't make sense to manufacture two different bends with a 2½° difference. There is more than enough play in the joint for it not to matter at all.

 

[robodelfy]

It wouldn't make sense to manufacture two different bends with a 2½° difference. There is more than enough play in the joint for it not to matter at all.

Ok thank, good to know