Basin waste pipe into floor

[Belle427]

We have a downstairs toilet in a 10 year old typical poorly plumbed install.
The basin waste pipe exits through a hole drilled in a tiled floor straight into the ground soil/waste underneath.
There is no seal, so we get smells coming back through it, even though the gap is very small.
Any ideas how I can make this seal to the floor properly?
I will probably have to glue the pipe in place as our basin unit has to drop down over it, I’m not confident silicone will do this properly.
Any tips would be great.

 

[Hugh Jaleak]

Should be a adaptor in the drain to accept the waste pipe, possible the seal has been dislodged from that, hence the issue. What would be involved in removing the tiles to see what is going on?

 

[Belle427]

Possible as one maybe directly under unit so minimal damage. From what I can see when looking down the hole it’s just straight into a clay coloured pipe!
I see this is probably the answer.
https://www.pipekit.co.uk/below-gro...gr2e3QIVAbTtCh0UhgK3EAQYBCABEgJrBPD_BwE#index

 

[Hugh Jaleak]

Something like that fitting should have been used to seal the pipe correctly. If you can get one in then that would be the ideal answer, make good the floor to prevent it being dislodged in future.

 

[Belle427]

Its under a vanity unit luckily so wont be seen.