Will a WC connect directly to a 110mm ring seal branch T socket? Reason I ask is that I have a horizontal run of soil pipe in the floor void with the WC connection at a branch T poking vertically up through the floor boards (new build) in the right place..... will the WC just drop straight into that and seal? or am I going to have to drop a short piece of 110mm pipe into the socket, then use a pan connector to sleeve into and join the two together?