Gary
Had the same, just waited until the tank was less than a quarter full, pulled it off its base, stood it on its end and changed the tap.
There's one hell of a good oil boiler technician in Bwlchgwyn, he services my Rayburn. Carries more or less everything on his van, none of this popping out for parts business.
Arwyn
Hi Arwen, I couldn’t wait the stink was too much for SWMBO to live with. Turned out that as long as the spring loaded brass shuttle valve is free all but a tiny amount will be held back. Seized portion was the left handed tap thread that pushed against the valve. Plus gas, very careful drilling and even more careful application of heat ( hair dryer) eventually got it to move.
Any contact detail for you chap? I need to look for a new boiler technician. Cheers.
