blocking old drain in concrete floor

[jimst]

Any suggestions as to the best way to block/cap an old drain where a toilet has been removed?

It's in a ground floor bungalow where the room is no longer a bathroom. Floor has 4 inch hole leading to manhole outside via usual 4 inch pipe. Nothing else uses the pipe so my thoughts are to block it up with concrete or something equally permanent, then lay the floor on top.

Should I worry about damp coming up though the floor???

Should this be in the building section???

thanks everyone....

 

[denso13]

Use one of these inside the pipe http://www.toolstation.com/shop/Hand+Tools/Plumbers+Tools/Nylon+Drain+Plug+4+x+/d10/sd210/p20648 then cement/concrete over