Pressure too High..don’t know how to lower. Swiftflow

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    • 9 Dec 2002 at 11:23 pm #276073
      Avatar photoMasterPlumbers
      Keymaster

        HELP. (BOILER IS A GLOWWORM SWIFTFLOW)

        Firstly I am not a plumber, I know that we do not have any water tanks other than the central heating boiler. The water comes direct from the outside supply and is heated directly by the boiler.

        The pressure (Even when boiler is turned off) has rocketed up to over 3 and the max is 4. the recommended pressure gauge is 0.7.
        I recently bled the radiators and whist I was bleeding them a large amount of water was released from the system. This in turn caused a drop in pressure. I opened up the water inlet valve (not sure if this is the correct term) to increase the pressure back to the normal level and all this seems to have triggered the rise in pressure I have now.

        Can you tell me….In layman terms please.

        Regards, Graham Wright

        Email [email protected]

      • 10 Dec 2002 at 1:17 am #293372
        Avatar photoHarold Kestenholz
        Participant

          Yup, your water inlet valve allowed more water in to pressurize the system, so you need to shut it and open another valve that allows water to leave the system to drop the pressure.

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