Well, it must be about time someone slagged them off again here innit?
Anyone remember some discussion hereabouts concerning some Really Useful
new radiator tails which Screwfix had added to their repertoire: they
incorporated in-line screw-head valves to enable a rad to be qickly
isolated and removed, and later replaced, while still full of water: no
mess, no draining down, no loss of inhibitor etc etc: seemed briliant.
I bought a pair about a year ago intending to use them but never did,
and finally fitted them only today to a new radiator. Went on fine,
looked neat, then I opened the valves to fill the rad and.... one of the
bloody things leaked like crazy, around the screw-head which you turn to
switch the flow on and off. So, absolutely nothing that can be done
other than drain down, dismantle the whole thing again, and go out and
buy some proper tails.
So I'm well chuffed.
Had a look on screwfix.com to see when I ordered them and what they cost
me but I note that all trace of these gizmos has now vanished from
Screwfix's catalogue and records, apparently. Funny, that...
The radiator tails are Pegler Terrier and obtainable from your
There is a drain point inbound of the valves.
Regarding Screwfix keeping of old orders.. I always export mine as a
PDF on the MAC - a built in function.
Its short for MACINTOSH, which is an acronym for "Most Applications
Crash, If Not The Operating System Hangs" ;-)
(or alternatively its a bog standard Intel PC, with a NetBSD/Unix based
OS with a nice NExT derived user interface glued onto it, and a
I don't know if it used to, but colleagues and I find that it's very
solid indeed and application crashes very rare (even Microsoft ones).
Typically mine gets slept and woken (although boot time is very fast)
regularly over several weeks and only gets rebooted for the very rare
occasions that I need to run a native boot of Windows.
I suppose it is religious for some. I just like to have something
that works and does so quickly and reliably. I could have had that
with one of the more commercial implementations of Linux I suppose,
but even then I think that the applications and UI are better on the
A system that works reliably, doesn't slow down or load extra crap that
isn't needed and continues to work correctly month in month out even
with assorted applications added and removed.
XP doesn't do that.
FSinstallationsO XP. My XP PC works reliably, doesn't slow down or load
extra crap that isn't needed, and continues to work correctly month in month
out even with assorted applications added and removed.
OTOH I can think of various people I'd rather had a mac, since windows boxes
don't work for them.
Then you're very fortunate. There are a whole variety of Windows
applications and utilities that do load a lot of extra crap and the
user has no choice in the matter.
I have both, and *can* maintain Windows machines given time and effort
to do it. I would rather spend that time doing productive work
rather than system administration of something that still isn't an
operating system despite years of effort by Microsoft.
Tis, ok I was not being serious... Yes current models are pretty stable
- as you would expect with their unix foundations. Go back to the old
68K/OS-9 and prior systems and they were less so - but still better than
Win98 and its predecessors.
 Question came in from SIL the other day (magazine editor, so a long
time mac user in the publishing industry): How can I tell if I have
I talked her through opening the mac "Terminal" program, which dumped
her into a bog standard unix type shell, so I could get her to run "top"
to see what the physical/virtual memory usage and paging stats were
like. She was actually shocked to find that beneeth all the translucent
gloss of the UI, lurked a "real computer" with a command line!
I expect that shortly you will be able to have the best of both worlds.
Don't know if you read Bob Cringley, but a while ago he was reminding
people that due to a technology sharing agreement between MS and Apple,
Apple still hold rights to use various parts of windows up to and
including version XP (including source). Hence it should be possible for
them to build in direct support for windows apps, not just using dual
boot, but also running in OSX alongside the native apps. That would then
open up the interesting concept that the most secure and reliable way of
running windows apps would be had by buying a Mac!
No I hadn't.
As it is now, one can run Windows as a virtual machine under Parallels
(similar concept to VMWare). It actually works pretty well and has the
advantage that one can keep a known good virtual machine image and
clone it for when Windows inevitably gets into an irrecoverable mess
(or one where it isn't worth spending the time, and where on a PC one
would recover from a backup etc.)
Yup, that is one option - although not an out of the box solution, so
you can see it would scare many of the traditional non techie mac uses!
If it were included from the start then you could see it becoming quite
a compeling solution. Full backwards compatibility, but with an easier
to use and maintain platform, better security, and if current reports
are anything to go by, very good performance runing windows.
He does a bit more on it in later pieces:
Over the present few days, see:
That's what this newsgroup needs, a good comic strip. We've already got
a title - see Subject.
Nominations for cast of characters?
To disconnect and remove the rad without draining, eg for redecorating
(and if you saw the colour my daughter has just got me to paint her
bedroom walls you understand why that's important!) - unless we're
talking at cross-purposes, that's not possible with a drainable tail?
So to understand this arrangement .The tails have valves which you turn "off"
and you then turn off the TRV as well then you remove the radiator together
with the closed tail has a valve thereby avoiding any spillage of water out of
the rad which is not possible if you only have trv's/lockshield valves that
you shut .?
Turning off the lockshield end and handwheel/TRV end will stop water
escaping from the pipes but *not* from the radiator. That will empty all
over the floor if you remove it.
The idea is that you loosen the valve connections onto the radiator just
sufficient so that when you lift the radiator off its brackets you can
rotate it downwards to rest on a suitable support You then tighten the
connections back up to prevent any more water loss - there will be a
little once you have slackened the connections and as you rotate the
The above assumes that there is enough vertical movement on the piping
to be able to lift the radiator off its bracket - I have some radiators
which are fed by pipes which don't offer either any or sufficient
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