What is the difference between soil pipes?

[SMB]

Hi,
Searched but I can't find the answer.
What is the difference in the plastic between underground 110mm pipe and ordinary 110mm above ground soil pipe?
Many thanks, sorry if this is in the wrong section.

 

[ShaunCorbs]

underground isnt uv resistant and slightly thicker wall (nothing much tho )

 

[AWheating]

as above ones orangey brown and not uv resistant, you can use both underground.

 

[kozak1968]

The orange underground pipe will go brittle and can break if exposed to sunlight.

 

[Billy Bob Bob]

UV Rays,brown breaks down in the sun

 

[plumben]

As others have said, brown isn't Uv resistant

 

[tamz]

Allegedly.....
Orange is cheaper and looks shyte run up a wall but if yer daft enough to do it wgaf. Its you looking at it.