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Quick addendum - why I figured that the values are OK, is simply that the house is only 7 years old, thus the same age for the CHS. If I replace these 2 values, then I ought to replace other values of radiators I'm taking off to flush with a hose?!! Don't fancy that extra expense, but just...

breezer, just a note to say that you merely stated 'replace old value'. You didn't mention the olive, or how to change the coupling. In fact, it was the coupling (female connector & olive) that I'm replacing. The values (locksheild & handwheel) are left intact. Definitely not replaced as...

thanks to Softus for that reply. Until now, I didn't know what an olive is - in terms of plumbing / piping. I was in the hardware shop this afternoon and took a quick look at the Plumbing section. Ah! I thought that the 'kink' at the top of the pipe was done in place by a plumber using heat...

thanks for your reply. Let me explain a bit further. The radiator is already taken off. The locksheild & handwheel values are also off. What is left - is the two pipes coming up from the floor. At top of these two pipes, a connector nut each. In other words, half of the coupling. This is the...

I'm getting new carpets laid down next month - and want to fix one particular radiator first. At the locksheild value (water exit) of this radiator, the coupling is leaking and has rusty water drips down on the pipe. I've disconnected the radiator from the wall and will soon flush all...