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    SENTINEL X400

    Hi all. My boiler has been making a racket for nearly two years now.About a month after it started i drained and refilled the system with X200.The drained water was pretty clear.The performance was minimal.After about 6 months i drained the system again an put in some x400.Voila.The noise...
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    Single pipe heating quandry

    Evening all. My one pipe central heating has been bugging me for a while now.It works ok downstairs.But upstairs new radiators were fitted sometime before we moved in and were not installed correctly.There is no bypass for the hot water to flow through if the radiators are shut off meaning...
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