[NeilB]

OK Folks, I have an MDE manifold with isolator joining my twin 10s together. Recently the valves have not been as smooth as they should be to open and close. So I though it was time for a clean and gentle lube - first time I have done it to these valves.
On all my other valves I can remove the knob and unscrew the spindle with pressure in the cylinder. Obviously I can't do this with the isolator but can I do it to the two side valves without draining the tanks?