On 07/05/2015 13:20, Bob Minchin wrote:
Jim x321x wrote:
Does anyon know if any building reg specifying that the female end of a
coupler must point backwards (uphill, towards the flow source), and the
male end of the coupler must point forward (downhill, in the direction of
the flow)? I have a situation where it would be much more convenient to
have one coupling the other way round.

TIA
Jim

I can't see that there could be otherwise the double ended female
coupler would not be a legit product.

Good thinking Batman!