On 07/10/2020 19:13, Harry Bloomfield wrote:
It happens that Jimk formulated :
Hmm to clarify, all of those valves are somewhat crusty &
*unwilling to operate properly & I fear things could go t1ts up in
*a trice....

As the cylinder is only on the floor above I was hoping for a
*"limit the spillage" plan rather than a "potentially make tons
*more work & inconvenience" plan.

If it is a cylinder fed from a higher tank, find something which is a
tight-ish fit in the pipe from the tank, to the HW cylinder. You can
actuall buy bungs for the job.

Like this
https://www.toolstation.com/radiator...RoCOGsQAvD_BwE



No water going in the cylinder, from the
tank means no water coming out.


--
Chris B (News)