On 05/06/2019 15:47, Thomas Prufer wrote:
On Wed, 5 Jun 2019 07:08:46 -0700 (PDT), wrote:

makes little difference where it is as long as it never gets cut off from the boiler primary circuit.

Install a cutoff valve anyway, thus ensuring that the expansion vessel will
never fail because now you can swap it out with ease?


Thomas Prufer


Given the poor service life reported for two of the brands I looked at,
this might not be a bad idea!