DIY Doctor


Postby whitey.37 » Wed Dec 10, 2008 8:45 pm

Right then, what is the difference between white and grey pipe and fixings.
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Simply Build It

Postby Steve the gas » Thu Dec 11, 2008 5:49 am


Different makes e.g. white could be speedfit, grey - Hep2o pipe.

I have mixed and matched fittings with no problems.

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Postby plumbbob » Thu Dec 11, 2008 4:54 pm

Er, one's white, and the other is grey. At one time, Speedfit did a white B-Pex pipe while Polyplumb did Polybutylene in grey and that was how I could tell the types apart. Now Speedfit do both B-Pex and Polybutylene in white so those rules go out the window.

Have a look here. ... hp?p=41933

Steve, be careful about mixing inserts between the two, Speedfit and Hep2o have different internal diameters.
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Postby chris_on_tour2002 » Fri Dec 12, 2008 7:04 pm

terrain make their waste pipes in grey as to polypipe. marley is white as are others. the grey pipe of whatever make are usually slightly bigger in diameter than the white, compression fittings will usually couple the two satisfactorily, solvent weld generally will not.
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