Discuss Biological growth in header tank. in the Central Heating Forum area at PlumbersForums.net
In the summer I had the boiler and 6 (out of 10) radiators replaced.
Last week I discovered a growth in the plastic header tank, which until then had always contained clear water.
I skimmed the growth off but it is starting to appear again.
What caused it and how do I remedy it?
Thanks
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