Discuss What is the pressure in this cylinder expansion vessel? in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
Thanks.The black needle is the pressure reading, showing around 0.6 bar, that's under the 1.0 stated.
The red is just a guide indicator that can be moved anywhere on the dial to indicate a maximum advised upper or running pressure.
Reply to What is the pressure in this cylinder expansion vessel? in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
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