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    Valliant Turbomax Plus 242 / 824 E - low hot water pressure?

    Hi, Firstly, the appliance you dealing with is either a turboMAX 824/2-5 or a 828/2-5. Both will suffer the same symptoms of a flat expansion vessel which should be dealt with by following the great instructions given above. One thing I'll mention about the instructions tho, don't always...