Soil pipe

[Willy87]

Hi good afternoon I’ve got a question I’m wondering if anybody can help with I’m on renovating my property and have a bath waste going out the wall and a separate waste for basin and shower going through the wall I’m wondering if I can join these together outside and only make 1 entry to the soil stack or is it best to keep them separate thanks

 

[Madrab]

You could possible get away with it if you increased the outlfow to 50mm at the connection but it's always best to keep them separate. Minimises the risk of them interacting with each other.

 

[Willy87]

Thanks so just run 2 40mm wastes straight into the internal stack using a boss connection on each 1 thanks

 

[Madrab]

Ideally all three would be separate but the shower and the basin on 1 and the bath on it's own would be 2nd best option ... yup both @ 40mm

 

[Willy87]

Excellent thank you can you get an adapter for soil pipe for both wares to come into it at the same side thanks

 

[Madrab]

Excellent thank you can you get an adapter for soil pipe for both wares to come into it at the same side thanks

Depends, is it only a double boss coupler you need or is it to be a branch for say a toilet too?

 

[Willy87]

The toilet comes in slightly higher so just a double boss I require thanks