Sealing/capping an old waste pipe

[waferthin]

I have an old cast iron waste pipe (which used to carry waste from a kitchen sink) that is no longer used and needs capping off. It is cut off quite close to the wall on the exterior of our flat and is about 2-3" in diameter.

I'm just wondering how I would go about sealing this to prevent draughts + mice etc. from getting in? A plumber suggested using plumber's mait to me but I'm not sure would be appropriate?

I could provide a photo if necessary. Any help greatly appreciated!

 

[obiplumbkinobi]

Piccie would help

 

[waferthin]

No problem -- just have to get home first...

 

[xr4x4]

If it's not been used at all, stuff some newspaper in it and then some cement.

 

[waferthin]

Photo attached...
View media item 33621 [/img]

 

[carlsquires]

could you not break it out and remove it completly?

 

[waferthin]

I'm not sure removing it completely is an option - although it might be preferable - I would need a stone mason to cut stone to fill the gap. I think cementing probably sounds like the way to go (and plumber's mait probably not)

 

[obiplumbkinobi]

Strong cement mix would do (Jetcem). Def not Plumbers Mait.