Any plumbers on here?

[hobbiniho]

you say its a new build but it must be a bit of age considering the amount of green on those pipes 

[dom]

Right, back to my tap

Just took the pipe off the bottom of the valve and opened the tap on it, not water other than a tiny dribble. In the morning I'll switch the water off and remove the valve completely, turn the water back on and see what happens.

[dom]

you say its a new build but it must be a bit of age considering the amount of green on those pipes 

House was completed at the end of august last year.

[dixie180]

Okay,i would unscrew the little screw that holds the black tap in place.Take the black tap head off and underneath should be a square shaped head.Get an adjustable spanner and slowly try to turn the square shaped nut.

[dixie180]

Green on the pipes will be from condensation where cold pipes meet warm air.Not uncommon on cold mains water pipes.

[dom]

Okay,i would unscrew the little screw that holds the black tap in place.Take the black tap head off and underneath should be a square shaped head.Get an adjustable spanner and slowly try to turn the square shaped nut.

I'll give it a go in a bit

[hobbiniho]

yeh its just a bit strange seeing copper pipes with soldered joints in a new house, seems rather outdated to me thought most people used plastic nowadays

[dixie180]

The older plumbers still like to use solder fittings but don't always wipe the flux off after soldering.Hence the green on the copper pipes.

[dom]

Okay,i would unscrew the little screw that holds the black tap in place.Take the black tap head off and underneath should be a square shaped head.Get an adjustable spanner and slowly try to turn the square shaped nut.

Turned the square nut 360 degrees and still nothing, do I need to turn it more?

[dixie180]

It should only turn a quarter of a turn.Sounds as if that may be the problem as there are very small stops that make it nion impossible to turn that nut 360 degrees.