Hi. Having reviewed similar but not identical problems on this forum and tried and failed to resolve this myself using plumbers tape and tightening nuts around the area, I’m looking for some guidance afore calling a plumber. The only way I can stop this particular leak is by turning off this valve at the bottom of the tower rail which also appears to be the sauce of the leak. When I turn it on I’m met with a jet of water where the valve/tap meets the rest of the metal work. Hopefully the picture helps to better explain the issue than I have, but have you any ideas or recommendations. Finally, we’ve already been quoted £75 plus parts from a plumber which being a tight bum does seem a little expensive.