Outside tap not working

[jlawsonuk]

My outside tap has stopped working. When I turn it on now I just get a dribble (at best). It's a new (3 years) house and the tap was already installed when I moved in. It was working at about Xmas time. There's a stop cock and a one-way valve (??) in the kitchen cupboard immediately before the pipe goes outside. Any ideas on what the problem could be?
Thanks!

 

[Burnerman]

Its probably the 'jumper' at fault in the outside tap - this is the part that holds the rubber washer in place. Quite often then stick down, but the fact that you have an internal stopcock makes for a simple repair.
Stopcock off, undo the large hexagon on the outside tap body to reveal the insert and washer. Briefly turn the inside stopcock on just to check that it isn't that at fault. Turn the rubber washer by hand and the jumper will come free. Lubricate any threads inside the tap with some vaseline or silicone grease.
John

 

[Nige F]

Pipe froze and b`ggured the "one way valve" - as the water tried to push back It`s a Double Check Valve - and a standard fitting from plumber`s merchant