Discuss Vented cylinder connections in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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I look at this way. A GSR I know, he does my gas work, fitted a cylinder twice and then a third time with a new cylinder. Male Iron fitting into the cold feed. The conversation went "What do you use when plumbing in a cylinder on the cold feed, I can't stop it leaking" I told him ptfe on the mi threads and then a little smear of paste and then a smear (what a cracking word smear is) of paste on the olive and hey presto. He treat himself to some paste and finally sorted the cold feed. I installed an external oil boiler for him whilst he fitted rads and a towel rail inside and modified pipework to suit. Managed to fill the system long enough to commission it before he had to drain to fix the leaks on the rad tails and towel rail tails. No paste.
Ar, yes but also No experience !! (& he probably wasn't using imperial tube but that metric stuff which was all scratch up. LOL)
 
SimonG reply about someone having leaks because of no paste reminded me of a neighbour who used a guy who wasn't really a plumber to do a bathroom plus all the plumbing/heating in a new extension.
Neighbour said the guy asked him to get an engineer in, as he couldn't seal the valve tails on a rather odd new rad in bathroom. Went in to sort it & noticed the rad bosses were a bit oval, to be fair, but when we said it was better with paste as well as ptfe, the bloke (who couldn't sort it) had a cheek to say it didn't need it! I redone the ptfe & pasted the tails. No leaks & it is still sound at least 20 years later.
 
SimonG reply about someone having leaks because of no paste reminded me of a neighbour who used a guy who wasn't really a plumber to do a bathroom plus all the plumbing/heating in a new extension.
Neighbour said the guy asked him to get an engineer in, as he couldn't seal the valve tails on a rather odd new rad in bathroom. Went in to sort it & noticed the rad bosses were a bit oval, to be fair, but when we said it was better with paste as well as ptfe, the bloke (who couldn't sort it) had a cheek to say it didn't need it! I redone the ptfe & pasted the tails. No leaks & it is still sound at least 20 years later.
Have you got shares in a paste factory or something Mr Best, :bulb2:
 
I'm a big paste fan. Don't use Boss white anymore. Too runny. Jet blue. Why they call it blue I'l never know. Its the colour of french mustard! LOL
 
Have you got shares in a paste factory or something Mr Best, :bulb2:

No, just got addicted to the stuff, - you know how it is, it starts with just one joint, then you like it, so it's 3 or 4 joints & nowadays I am up to sometimes a couple hundred joints a day!
Afraid I am a pasteaholic.
 
I've never used paste and ptfe on the same joint. Am I weird?


No. One or the other. I've only ever used PTFE in an olive on a joint that's allready leaking. Not on my own work. PTFE is for threaded joints in my opinion!
 
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