call me VK wrote:
Anyway, I tried to loosen the hexagonal but using a spanner but it
just wouldnt budge. Am i doing anything wrong ? Is this tap different

Looks pretty standard to me. They can be a bugger to shift. Try spraying
WD40 around it & leave it for half an hour. Get a big spanner or a socket
on the hexagon & hold the tap firmly. It will undo!

Dave