Drain Inspection Cover Fitting

[JamieB3009]

Good Morning,

I have a paving slab which appears to have come lose from its bed (rocks when walked on) and are planning to lift it up and put a new mortar bed under it. The slab has an osma drain inspection cover in the middle of it. Does anyone know how these are fitted? Should I be able to lift the slab and this stay where it is, or will it come up with the slab? It appears to move with the slab, but there are no smells so im guessing the seal to the drains hasn't broken. I don't want to rip it up and then find I have foul smells coming up. See photo.

Many thanks,

 

[Johnny Allround]

You will be able to unscrew the lid and have a look how it’s fit in the slab.

 

[lonner]

Looks to me like a concrete in-situ finish and to me and not a slab.

You can simply re do it ,you can buy a slab and cut it.

That inspection cover is no problem, it's not screwed or anything , it's attached to the drain and usually sealed with a gasket.
If it's bodger then it may need setting when you do the repair.
If its at the correct level " which it is" simply lay slab or re do the In-situ concrete.
4:1 wet mix, trowel edges so it looks neat.