WC pan connector seal

[meteor1]

Hi
I'm about to install a close coupled WC. The pan will connect to the soil spigot in the concrete floor using a 90 degree connector. I believe the connector seals into the soil pipe spigot using the rubber gaskets

How do I fill in above the top of the gasket to fill in the space between the connector and the edge of the spigot? I've seen mentioned a wax ring. Or can I just cement over the connector/spigot join?

Would appreciate replies

Thanks
CC

 

[seco services]

cement it in. how you ever going to remove it in the future.
just use a bead of silicone if your that worried.

 

[meteor1]

Ok ...I know I'm ignorant. It's just that the existing WC (ancient) has the kind of trap that connects directly to the spigot and it appears to be sealed in/topped off with cement.

Thanks for the input