The new cylinder I'm installing has 1 inch BSP male connections to the indirect coil. The 1 inch BSP female to 22mm compression adapter I'm fitting has a 1.5 inch across the flats hexagon. As the tank is foam insulated I can't use my big shifting spanner, I need a box spanner or socket spanner, which I don't have and don't look that easy to obtain on a Sunday.
Is there a special plumbing jargon name for such a tool please?
Is there a special plumbing jargon name for such a tool please?