The tank is still 1/3 full could be even up to nearly half full. I did
the little valve next to the gauge and it only went down by about 1cm.
I also have one of those radio controlled monitoring thingys which is
still saying "5" which I can only assume is still loads left. I shall
be getting one of my heating people on board today hopefully so it
should be all fixed soon with a bit of luck...
Thanks all
babybanks