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i added a radiator...actually 2...

Discussion in 'Plumbing and Central Heating' started by itry, 20 Mar 2005.

  1. itry

    itry

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    i think i have a open vented system. i drained the whole system first. before connecting the new radiators

    then this morning i turned the water back on to gently fill it up.

    let the radiators fill up til they started leaking out of the bleed valves.

    (did i need to do anything else special? slightly worried about the tank that leads into the pump)

    ...and possibly this is where i went wrong: i thought you were supposed to bleed the pump with it switched on ( well thats what my brother said!)'

    so the pump whirred lots...intemittently hissed , and dripped...but the water didn't flow, like they did out of the radiators. is that normal?

    have i missed any steps? the pump is a lot nosier , and i'm worried there's still loads of air trapped in :confused:
     
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  3. kevplumb

    kevplumb

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    what's the system :?:
     
  4. itry

    itry

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    its an open vented central heating systrm where the water can be spearately heated for heating the room or tthe hot water taps.

    is that what you mean?
     
  5. doitall

    doitall

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    Never have the pump running they are water lubricated no water = lots of squeeling and a new pump
     
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  7. itry

    itry

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    hmmm...but why isn't there any water there: it should have just filled up but my best guess now is there's an air bubble round there....

    there's a small sealed tank just above it called the automatic recovery tank) and I'm wondering if 'its filled up/ how do I know? is this likely to be a problem?!
     
  8. ChrisR

    ChrisR

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    Eh? Wossat? What's it connected to?
    Do you have a small header tank eg in the loft?

    Water doesn't exactly flow out of the pump with screw out, just a bit of a dribble which more or less stops.
    Id there a vent point in the airing cupd/by the HW cylinder?
     
  9. itry

    itry

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    Guys...thanks for your time.

    in the end i just bled the system again ( i connected a hose pipe to varioys drain points)....and it seems to be a lot happier now. fingers crossed!

    as for the automatic recovery wotsit , thats whats written on the label!....a small copper sealed tank.
     
  10. brumylad

    brumylad

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    post a photo sounds like a rarity
     
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