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I may have got to the bottom of my green hot water as in a previous post. I have noticed on my Range Tribune unvented indirect hot water cylinder where the thermostat goes into the cylinder body there is a load of white chrystaline crud. It looks like some sort of chemical reaction between the...

Hi all, My hot water is going greeny brown and cloudy but the house is only 5 years old (built by Wimpey, 4 bed detached). I noticed some black flecks as well as if something is breaking down or perishing somewhere. Any ideas? Plumbing is not my forte but I think it is an "unvented hot water...