No, don't have a spare unfortunately, but to strip the pump out and exchange it is a bit overkill if I can fix this one. This seems to be the problem, that disc screws into the pump body , this seems to be where it is weeping from.
I reckon I need to take this off and see how it seals up, I don't know what is in behind it in the pump body though.
I reckon I need to take this off and see how it seals up, I don't know what is in behind it in the pump body though.