Hi NormK
Again, thanks for your reply. I've worked out where the Calibrator Needle is situated. I've unscrewed the screw that secures the outer Cap. That screw has a filter as part of that screw... a very interesting filter, but you would know about that. I can see the Float, the 'O' Ring and the little Calibrator Needle. I'll purchase all the parts that you have suggested, and I it's the way to go. We've had major Internet issues, and I think that this is due to the local 2018 Commonwealth Games and all the infrastructure that has had to be put in place for the Games, but this has been been going on and off for months and months. I've got good connection at this stage. Thanks NormK, and when I get the replacement parts as you have recommended, I'll be back in contact, but I'll continue to check this forum.
