Old metal waste pipe

[lucas121]

I've got a customer that has a leaking trap on his bathroom basin.

The trap and pipe work is quite old and made out of metal. Due to poor access and everything being painted I could not confirm which metal it was or what size. It looked roughly the same size as 32mm plastic.

Would I be able to just swap the old metal trap for a plastic one? Would 32mm compression fittings work on the pipe or would I have to replace all pipe work to the stack? Would the plastic trap fit the waste or do I need a new one of those too?

Excuse my naivety, have never worked on metal drainage ofther then when ripping out a suit.

Thanks.

 

[ShaunCorbs]

it prob will be copper, ive always used a comp fitting

 

[gasmanrob]

Could be copper, Galv, or lead.

Compression will work on lead and copper but with Galv you're better of unwinding it from a suitable joint and use an adaptor

 

[plumben]

As said its most likely to be copper,

Ive always used compression when not replacing if its lead or copper,
And If your worried about the waste being a different size just make sure you've got one in the van

 

[AWheating]

if its steel you can consider using a fernco coupler