Having gone away in our 2006 Elddis Superstorm this last weekend i came across a problem that has never appeared before. In that i came to light the gas BBQ but did not have enough pressure of propane gas for it to light sufficently (or so i thought) i assumed that the gas cylinder must have been empty or very nearly so i changed over to a new cylinder and this initially seemed ok. However the gas gradually over 30 mins lost all pressure and the BBQ went out i went in and tried the cooker only to find that it lit before again losing pressure and going out. I now cannot light any gas appliance inside the van i have checked for leaks and there are none. I suspect that the bulkhead regulator is blocked has any one else had similar experience with this type of bulkhead regulator and if so what was the solution? I should add also that i was using a standard Calor gas bottles as i have for over 10 years I recall seeing an article in Practical Caravan some time back on faulty regulators but i cannot recall which issue of the mag. Any helpwould be greatly appreciated as we have our main summer holiday coming up in about 4 weeks.