Low pressure to outside taps

[Rose Crompton]

I have 2 outside taps that used to be fine. They are now just a dribble! I had a plumber out yesterday who said we would need increased water pressure and he couldn't fix them.
I have checked the pressure and the cold tap in the kitchen fills a 1 litre jug in 7 seconds so United Utilities can't help.
What do I do now?
Any help would be really appreciated.
Thanks

 

[SimonG]

Post some pictures of the taps pipework in the house and the taps outside.

 

[snowhead]

If the taps have check valves built in then they are probably jammed.

Did the Plumber take a tap off and check the flow?