Quick plumbing question

[miniman]

I need to repair an outside tap. The setup is that the water main comes in via the big blue pipe, into a plastic stop valve, then out of the top of the stop valve via some kind of reducer directly into 15mm copper. I need a new reduced - what on earth do I need?

[MrV]

Something like this

http://www.screwfix.com/p/floplast-copper-mdpe-ada...

you might have 25 mm rather than 20mm mains pipe though.

[Pixel Pusher]

http://www.screwfix.com/p/floplast-copper-mdpe-ada...

Just a guess.

[Pixel Pusher]

MrV wins by a minute.

[Arthur Jackson]

So long as it is a Floplas fitting. Internal reducers are not universal.

[miniman]

Thanks all