Soil Pipe Cutter - How short can?should I cut?

[GotWood]

I need to cut back a horizontal soil pipe in order to fit a new toilet. It is 3.5" ID cast-iron and still has it's collar. There is about 2.5" between the back of the collar and the wall - Will this be enough for a chain cutter to fit around it?


I intend to hire a cutter from HSS which works parallel to the pipe due to restricted space.

Additionally - what is the shortest you should cut, or is there no limit?

Many thanks.

 

[ChrisR]

PLumbers generally use a small angle grinder.
You can cut flush with the wall if you like, and use plastic WC extensions to suit.

 

[kirkgas]

PLumbers generally use a small angle grinder.
You can cut flush with the wall if you like, and use plastic WC extensions to suit.

too high a risk of sparks causing a fire inside a property if they get down between the floorboards etc,

put a new blade in a hacksaw then cut across the top of the pipe just behind the collar, until the whole depth of the blade is inside the pipe, giving a horizontal cut of approx 40-50mm long, then get a lump hammer and "skelp" the collar as hard as you can (DO NOT TAP IT) the pipe will shear clean through

 

[ironman1]

Go hire a 'snap cutter' or get a 9" angle grinder on it , job done.

 

[GotWood]

Although "skelping" it sounds fun, I am a coward

What is the difference between "snap cutters" and "chain cutters"? Some sites use them interchangeably, others say they are different....

How wide is the chain on a snap/chain cutter? Will it (and the ratchett) fit in the 2.5" gap between the collar and the wall?

 

[Nige F]

only 1 way to find out - measure @ the hire shop But i think it will go - last time I used one was 1975 Also make sure you get the correct connector for that B`stard size iron pipe- before you start