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Hi 1983 yes the pipes are connected correctly as the tcv is installed on the top pipe going into the cylinder as recommended on the tcv instructions .. Hi agile I don't think there is an auto by pass valve.. Is this a small valve with a red wheel on it ?? Thank you

Hi 1983 yes the pipes are connected correctly as the tcv is installed on the top pipe going into the cylinder as recommended on the tcv instructions .. Hi agile I don't think there is an auto by pass valve.. Is this a small valve with a red wheel on it ?? Thanks you

hi all hopefully someone can help, we recently had new thermostatic radiator valves fitted on all our rads and a new thermostatic cylinder valve fitted at the cylinder.. all works well when the boiler is turned on until about 20 minutes later when a banging noise starts that comes from the...