Probably as expected having disturbed the fuel filler hose (NTC2337) to sap the tub the joint between the hose and the tank is now leaking. I have retightened the jubilee clip to no difference. so now have a couple of questions before I buy a new one:

Firstly only because I am at work and it is raining outside, does anyone know the external diameter of the hose where it connects to the tank so I can order some new jubilee clips/hose clamps and double them up. If not I will get wet this evening and crawl underneath with a tape measure.

Secondly does Hylomar blue work with diesel? I know it is good with petrol as covered the sender gasket on the MGA in it to try and stop that leaking. If it does I will do the same with the pipe before clamping the hose to it.