Hi, new here!!
I am absolutely pulling my hair out trying to find answers with regards bossing in to the top of horizontal soil pipes.
I have read the regulations and it states nothing more than “should be near the top”…. Great cheers.
I have then read about 4 trillion pages of contradicting answers and plumbers arguing with each other.
Basic jist is… new loft conversion in a bungalow. Bath, shower and basin. The gable end of the house (where the stack is) is in quite prominent view from the front, so I’m very keen to avoid a soil pipe and 3 seperate 40mm’s coming out of the wall.
Everything will be boxed in including the bath (fitting a Mcalpine top access trap and wall mounted 150 center taps to allow this)
Vanity is a wall hung unit with zero space to add an AAV (I spent hours trying to find a trap/waste combo that simultaneously fits and satisfys building control)
I have attached some photos of a mock up I have come up with… toilet left, x3 bosses in to top of pipe to take shower bath and basin, then 90 out through the wall in to a ventilated stack.
Basically… will this work ok without siphoning issues? Logic tells me that the toilet would have to completely fill the entire 110 pipe before I’d have issues which seems unlikely, but would love some more experienced ideas before I tile it all in!
Thanks
I am absolutely pulling my hair out trying to find answers with regards bossing in to the top of horizontal soil pipes.
I have read the regulations and it states nothing more than “should be near the top”…. Great cheers.
I have then read about 4 trillion pages of contradicting answers and plumbers arguing with each other.
Basic jist is… new loft conversion in a bungalow. Bath, shower and basin. The gable end of the house (where the stack is) is in quite prominent view from the front, so I’m very keen to avoid a soil pipe and 3 seperate 40mm’s coming out of the wall.
Everything will be boxed in including the bath (fitting a Mcalpine top access trap and wall mounted 150 center taps to allow this)
Vanity is a wall hung unit with zero space to add an AAV (I spent hours trying to find a trap/waste combo that simultaneously fits and satisfys building control)
I have attached some photos of a mock up I have come up with… toilet left, x3 bosses in to top of pipe to take shower bath and basin, then 90 out through the wall in to a ventilated stack.
Basically… will this work ok without siphoning issues? Logic tells me that the toilet would have to completely fill the entire 110 pipe before I’d have issues which seems unlikely, but would love some more experienced ideas before I tile it all in!
Thanks
