On 23/01/2018 04:59, wrote:
On Monday, 22 January 2018 21:36:28 UTC, wrote:

Does anyone know the C-factor for blue alkethene pipe ?

is it not smooth bored?

It is, although there is some variation in flow resistance for different
materials. PVC is something like 140 - 150 ISTR, so I would expect
something similar.


--
Cheers,

John.

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