DIYbanter - View Single Post - Black plastic Water pipe

Tim S

coughed up some electrons that declared:

Gordon Henderson wrote:
In article ,
BigWallop wrote:

So look at the black pipe again and gently scrape the outside of it with
a small blade to make absolutely sure that it is what you think it is.

So... Thanks for the replies...

Proper investigation has found the following:

It's plastic and black. Not lead - it bends easy and feels
plasticy. Scraping the surface reveals more black plastic!

Outside diameter is very close to 20.5mm. Wall thickness hard to
determine without cutting it, but it's fairly stiff to try to bend. (but
it also has 8 bar inside it)

Are you sure it's not just standard black MDPE pipe for use above
ground? It's identical (in dimensions) with the more common blue
stuff but for use above ground.

That's a point. My alkathene stuff has concentric rings on it - very faint
but it's not smooth. If someone could confirm if black MDPE is as smooth as
blue, then that would be one possible indicator.

Cheers

Tim