Cleaning/Flushing a pressurise ad sealed CH system

Dougie Nisbet · 2003-10-20T19:34:09+00:00

I have moved into a house with a dog's breakfast of a CH system. The CHsystem looks like it's been around a while, but fairly recently the hotwater tank has been replaced with a combi boiler. (Installed arse aboutface as it happens - the TRVs on the (15) rads are all the older type thatare mono-directional - the combi had been connected into the existingsystem the wrong way round.)The towel rail in the bathroom has stopped heating up, but the other radsare ok. There is no air in any of the rads. I think the system needs agood clean and then some re-filled with some inhibitor. The question: Is it a DIY job? None of my DIY books cover it and mygoogling of the NG archives hasn't come up with anything definitive in theJanet and John guide to flushing your system vein.Dougie

Oct 20, 2003 22 Replies

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stefek.zaba 22 years ago

Ah, so if I navigate my way to Nr11 Downing St, will I find a pirate's chest with all the

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Colin Wilson 22 years ago

XYZZY

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stefek.zaba 22 years ago

Dammit, meant to cancel that rather than send it off half-c*ck. But now I'm committed (Magnus Magnuson mode): so, if I navigate my way to nr11 Downing St, will I find a pirate's chest with all the little treasures I've accumulated so far neatly stashed in there? (Hey, if I'm *really* luck, I'll find a Red Button and a Green Button to push in some out-of-the-way Alternative Seat Of Government too; then again, the (Big) Red Button in an ASOG might do something a bit worse than open up the sluice gates of a single dam ;-)

Stefek, rambling

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