Stopcock - Identifying black pipe dimensions to replace stopcock

[dsteves619]

Make sure you support the stopcock/pipework if you are taking the body out to service.

 

[WHPES]

Black alkathene pipe only really becomes brittle with age if it's exposed to sunlight (i.e. UV degradation). This is why blue pipe should never be used above ground where it's exposed to daylight. Modern MDPE black pipe has UV stabilisers in it.

 

[jackplumb]

Looks like Alkathene pipe to me, plumbers merchants do an adaptor from this to standard sizes. Don't forget the inserts though. If you can take a sample and they'll give you the correct fitting.