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    Vaillant Eco Tec Plus Pressure Dropping

    I have recently had a Vaillant Eco tec Plus boiler installed and the pressure drops from 1.5 bar to nothing in about10/15 mins. The engineer who fitted it says that i must have a leak in the system. OK so the system is set up as such:- Firstly it is a microbore system. On the 1st floor...
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