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  • FIRST POST
    • anotheruser
    • By anotheruser 12th Oct 16, 11:02 PM
    • 2,286Posts
    • 1,425Thanks
    anotheruser
    Bleeding Radiators with a Hot Water Cylinder
    • #1
    • 12th Oct 16, 11:02 PM
    Bleeding Radiators with a Hot Water Cylinder 12th Oct 16 at 11:02 PM
    Previously, I've been able to bleed radiators, then open a valve under the boiler and add more water to the system. Lovely.
    Now I live in a house with a hot water tank cylinder and a cold water tank above it in the loft.

    There are no dials anywhere on the boiler or tank.

    If I bleed the radiators, will the system just add more water automatically? If now, how do I add more? How do I know how much to add?

    Thanks for any pointers!
Page 1
    • southcoastrgi
    • By southcoastrgi 12th Oct 16, 11:11 PM
    • 4,955 Posts
    • 2,881 Thanks
    southcoastrgi
    • #2
    • 12th Oct 16, 11:11 PM
    • #2
    • 12th Oct 16, 11:11 PM
    You should have two tanks in the loft the big one is for the hot water the small one keeps your heating topped up, don't have the pump running when you bleed the rads as you could let more air into the system rather than letting it out
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
    • owen_money
    • By owen_money 13th Oct 16, 11:28 AM
    • 354 Posts
    • 471 Thanks
    owen_money
    • #3
    • 13th Oct 16, 11:28 AM
    • #3
    • 13th Oct 16, 11:28 AM
    don't have the pump running when you bleed the rads as you could let more air into the system rather than letting it out
    Originally posted by southcoastrgi
    How so? Just interested as have read this before, but thought it wouldn't make a difference?
    One man's folly is another man's wife. Helen Roland (1876 - 1950)
    • southcoastrgi
    • By southcoastrgi 15th Oct 16, 12:35 AM
    • 4,955 Posts
    • 2,881 Thanks
    southcoastrgi
    • #4
    • 15th Oct 16, 12:35 AM
    • #4
    • 15th Oct 16, 12:35 AM
    Depending on where the pump is located determines if the system is under positive or negative pressure, if you bleed the rads with the pump running & it's under negative pressure then it can suck air in
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
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