As header, no sooner have I sorted all the car problems and won the coveted MOT, the bloody central heating makes its mark on the living room ceiling. Going to the floor above reveals a cut out in the wood flooring under the carpet. One nut on what I think is called a manifold is covered in copper sulphate. Nip up the joint I thought. As soon as I touched it, hot water exploded all over the place. It's an 8mm pipe going into a joint. Any ideas on sealing it up good and proper? I drained the system down and wrapped some ptfe tape round which has resulted is a very slow seep, when I brought the system back up to operating pressure (combi boiler). The nut that screws into the manifold bit seems to be 'stretched' ie, it does not feel like it will nip up if I put any more pressure on it. Can I get a new nut and olive I think it is, and get the thing to compress in a water tight manner?
OT: FFS Car sorted, central heating leaks
Nov 22, 2006
10 Replies
If there's an olive involved then the threads are neither here nor there, it's the olive that makes the seal. New olive will help but you'll have to cut the pipe off to get shot of the existing olive. My suggestion would be to get some Fernox LS-X, which is a plumbing mastic and bloody great stuff. Undo the joint, clean and dry everything off, smear LS-X all round the olive, remake the joint, don't overtighten (it's like doing brake unions), give it a few hours to set if you can, then see if it holds pressure.
PS A B&Q of any size will definitely sell you it, no doubt any other big DIY chain, or definitely a plumber's merchants. It's LS-X you want, not any other Fernox product.
"Vim Fuego" wrote in news:C259h.51305$ snipped-for-privacy@newsfe6-gui.ntli.net:
Right you are, I'l look out for that tomorrow, at least the system is limping along tonight - bloody cold up here.
Hey, have the off-topic brigade all gone to sleep?
It's not off-topic :-) I use Fernox LS-X anytime I'm working on a car coolant system, great for radiator hoses etc.
Ah but he entitled this thread "OT: FFS......". It makes a subtle difference.
Not really, the subject line identifies it as off-topic.
If you want to post something of topic then you put an OT in front of it.
Which will be why he did. The problem has arisen because it included a colon after the OT which OE neatly strips out when a reply is made. Blame Microsoft!
Tim
Or those who use MS software?
Chris
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