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Hi, I hope you can provide some advice on an issue I'm having with my Vaillant Ecomax 835e. When I turn on DHW downstairs, the boiler fires and provides hot water as expected. But upstairs when the shower or bathtub are used, the water will get (very) hot, then steadly decrease in temperature...

Hello everyone, I've got a water pressure problem in my loft (actually it's 2.4 bar static, but drops off to almost zero if anyone uses a tap while I'm in my electric shower) So, while investigating the pipework, I noticed this under my stairs (see attached) I expect it's an old gas...