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Help - fed up with bleeding radiators
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Brian Gaff
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Help - fed up with bleeding radiators
I'd have thought the up and down nature of the plumbing is an air trap
waiting to happen permanently myself.
Brian
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"AnthonyL" wrote in message
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I need to ensure I've got all the air out of my closed pressurised
system in order to resolve/eliminate another issue. Pressure is
around 0.8bar when I start, down to about 0.5bar when I've finished
and I then repressurise.
The bleed screws are those little square ones at the back (not side)
of each radiator so when they squirt out they hit the wallpaper.
The property is a bungalow so all radiators at ground level but the
pipes go up and over via the attic.
Anyhow most of the radiators instantly let out a silent stream of
water.
A couple sputter, water comes out but with a sputtering sound and/or a
whistling sound and this is where I'm confused. It seems no matter
how much I let out (I'm talking cup fulls not gallons) they still seem
to sputter. They sputtered yesterday, today and I expect they will
tomorrow.
Is this air in the system or is it just the shape of the screw?
Am I correct in assuming that air cannot be introduced into the system
unless there is serious corrosion or the like going on?
How much oxygen am I reintroducing repressurising the system?
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AnthonyL
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