Recent content by AlexCSB

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    Corrosion in a sealed central heating system

    I've just treated my sealed CHS with Fernox heavy duty restorer to cure some kettling noises from the boiler. As advised I've now drained and refilled the system 5 times but still the water coming out is a cloudy light brown colour. I'm beginning to wonder if this maybe due to corrosion even...
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    Refilling a sealed CHS

    Cheers JPC. Having read some of the other posts from a couple of years ago it looks like the only thing to remember is to bleed the rads starting from the downstairs and working up. Hope its that simple!
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    Refilling a sealed CHS

    Are there any tips that anyone has when refilling a sealed CHS to avoid getting air locks in the system?
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