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Plumbing

Connect new toilet to apartment block soil stack that doesn't have toilet already connected?

Anonymous user 03/03/2024 - 3.18 PM

Hi, My apartment has two soil stacks on opposite ends of the apartment. One soil stack currently has the toilet upstairs connected to it (currently the only toilet in the apartment), and the other soil stack has shower and washhand basin upstairs and kitchen sink downstairs connected to it. Both soil stacks run vertically down to the apartment below me, where I believe the same layout is replicated. There is no apartment above me. What I'd like to do is add a toilet to the second soil stack (the one that currently just has the bathroom washhand basin and shower and kitchen sink running into it). However, one builder that I've spoken to has told me that this is against waste water regulations as there is no toilet connected to the stack, and thus it's not considered a "sewage" stack. However, my assumption was that a soil stack is a soil stack and thus anything sewage-related can always be connected to one. Is it against some sort of regulations to fit a toilet to a soil stack that does not already have one connected to it (i.e. one that is currently carrying only greywater rather than blackwater)? And if not, are there any other considerations that I need to take into account about this? Thanks!

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4 Answers

Anonymous user

Just because it’s not got a toilet to it doesn’t mean it can’t have one added to it, you would have to find a man hole and test the drain, it’s more than likely able to have a toilet if it’s a 4” stack
Answered29 August 2018
0

D & R Property and Plumbing Maintenance

Rating: 4.9 out of 5
New Romney
this could just be a waste water stack,which may discharge through a trapped gully,what size is it ?,check with your local building control department.
Answered30 August 2018
0

Wilco Gas Services

No reviews yet

Leyton, London
Spot-on & Well done D&R....hidden trapped gully....Brilliant !! call a plumber to check proposed stack @ base level.!!
Answered28 September 2018
0

JVP Engineering LTD

Rating: 5 out of 5
Stratford, London
Hi, Do you know if that bathroom is specified by the constructor as green water ? When that building was built ? if you are the owner probably you received the soil stack drawings when you bought the flat. Has to be investigate before any work commence.
Answered27 April 2021
0