On Thu, 5 May 2011 20:12:23 +0100, The Wanderer wrote:

p.s. Not using Hozelock 'Waterstop' connectors by any chance?

I also had this problem, and in the end it turned out to be using
waterstop connectors on the inlet.

I can't work out why waterstop connectors are supposed to be a
problem or if they are how. When connected the male spigot physicaly
pushes the valve open, no way can it be sucked shut.

Maybe some people put waterstops at both ends of the hose and the one
at the tap end is sucked too far open blocking the flow? Easy cure
for that...

--
Cheers
Dave.