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Expansion tank help!
Hi, I have an almost 3 year old Vaillant EcoTec boiler with Solar panels for hot water. I live in a new build house and the whole thing was installed when the house was built. Yesterday, I was in the loft when I noticed a damp patch under what I now know is the expansion tank (I know nothing...- irvin38a
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- Replies: 3
- Forum: Plumbing and Central Heating
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