The pressure is less than half a bar. under the boiler is a flexible braided silver hose with a tap on the right which opens freely (should this be left up/down or left/right?) but the valve on the left doesnt move at all. I think these are the 2 I have to use to repressure the boiler?
up or down inline with copper and braided hose will allow water in and should raise the pressure in the system.watch the gauge carefully.when it is around 1.1 bar switch it to left/right and water should stop filling.Job done
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