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feed & expansion

  1. andyr123

    is this feed and vent setup weird?

    trying to get rid of an air lock in our boiler after emptying central heating system and looked in the airing cupboard at this setup . the alarming thing I found was going up into loft at the F&E tank expecting to see the cold feed being a 22mm ... but its only (equivalent) of 15mm - I say...
    • andyr123
    • Thread
    • boiler copper pipe f&e feed & expansion header tank heating oil central heating plumbing vent pipe vented system
    • Replies: 18
    • Forum: Plumbing and Central Heating
  2. D

    Why aren't central heating biocides widely available?

    Last autumn, I cleaned out the central heating system (old back boiler with F&E) with X400, and dosed with X100. It hadn't been touched for a good few years prior to that. A few months later, I find this gunge in the tank (stringy/white stuff) which Google tells me is probably bacterial and...
  3. A

    central heating F&E tank white gunk

    hi there, i am new to this forum and can someone please help me with an issue i am facing with my CH system? basically, i cleaned the system with X800 and left it in for a week after we had our radiators replaced with new ones about 2 months ago. i then refilled and drained the system three...
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