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Marnie asked in Home & GardenDo It Yourself (DIY) · 7 months ago

How to do a flush through of a Vailent combi gas boiler?

1 Answer

  • 7 months ago
    Favourite answer

    its not something you should tackle ...but if done properly the plumber will have a special pump ..and chemicals ..they turn all rads off bar one their way through ..turning on and off in sequence doing the rads the boiler is done at same time can take most of day

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