Seems to be exclusive to plumbworld.Never heard of the manufacturer looks like a cheap Drayton 4
Any idea why I can’t isolate this rad to drain it. When I try it seems to be draining the whole system. Could it be because it’s supposedly on the wrong side
Trv only goes to star. There is no 0. Plumbworld advised that star is the off positionTrv not shutting all the way
Lockshield off
Trv off not on star you should be able to drain just the rad
Would explain why the trv does nothing if it’s still flowing through when supposedly shut / off
But when at star the rad does shut down completely