How to repair dodgy soil pipe connection

[scarz3]

Hi all,

I need to repair the botched connection from a cowboy bathroom fitter, where the shower connects into the soil pipe.
They used silicone to fill the gaps, and lots of it. Now it’s started to leak albeit only slightly at present.
Any advice on how best to repair it, bearing in mind the adjacent toilet connection (unable to use a standard boss?) and the limited room available.

Thanks

 

[denso13]

I guess that's an existing boss connection on the side of the branch? Might just need redoing with the correct materials and a good clean of everything while doing it.

 

[scarz3]

I guess that's an existing boss connection on the side of the branch? Might just need redoing with the correct materials and a good clean of everything while doing it.

View attachment 425335

Thanks, but limited room…

 

[denso13]

Not many options unfortunately, you either leave it the way it is or make room and fix it properly.