Yep, the compression joint should be enough, but there's no harm in giving the olive a couple of wraps, especially when re-using an existing compression joint. Good vid 👍
I’ve never have done but I will give it a try now. I’ve fitted a compression fitting before where no matter how tight I tighten it it was still leaking, ptfe tape could have saved me from changing it to a new one
You may not need to put PTFE tape on the olive but it's a precaution. I've done enough fittings where I couldn't get a good seal no matter how tight the nut was and had to unscrew it and wrap a few turns of PTFE over the olive, tighten it back down and, voila, no leak. Now I just put the PTFE on in the first place and it never leaks. In an ideal world it might not be needed on a compression fitting but I can't see it ever doing any harm, only good.
Hi mate .I'm also no plumber , I have a few property's I rent out .one I'm attempting to replace kitchen sink .all is going well apart from the compression joints are weeping . The new flexi pipes are shorter so I've lengthened with joints ... can I undo them and use this tape on the thread ? .
No offence, but I would have given the pipe a quick wipe with very fine grade wire wool before fitting the olive to make sure that any dirt or oxidisation was removed and give a pure metal to metal contact between the olive and the pipe..
This is a comedy video. Compression fittings use metal to metal seals. If it weeps its either too loose , badly overtightened or something is scratched.
In an ideal world, you shouldn’t need to use PTFE tape but it’s fine to use when required ie on old pipe etc. I would always try to do the job without first then use it if required.
This is incorrect. The way these fittings work is as you tighten the nut the olive not only gets pushed home into the fitting, but it gets squashed to make a seal against the copper pipe and the fitting, hence compression fitting. No need for PTFE on the olive. PTFE is for use on male tapered pipe threads.
Yet even a perfect compression fitting will weep a lot of the time, probably slightly lower quality of typical DIY store fittings, imperfect pipe or so on, and with a few wraps of PTFE tape it will not leak. We all know the theory of how compression fittings are meant to work, but PTFE is for real life when they simply don’t work as they should. Much easier to apply PTFE than have to constantly fiddle, turn water off, fiddle again etc.
Хобби
I’ve always put it round the tread! 😮Thanks for the vid! I’m a DIYer of course! You’ve just revolutionised my plumbing career! 👍
This is a very helpful explanation.(Notice that no PLUMBERS are saying you can't use tape)
Im no plumber but to me PTFE ought to be used on anything like this.good vid.
Cheers, just what I needed
Yep, the compression joint should be enough, but there's no harm in giving the olive a couple of wraps, especially when re-using an existing compression joint. Good vid 👍
Might be good for re-used (damaged) compression-fittings.
Sounds like he’s been on the 1day Plumbers coarse, hope he has a Bucket
Exactly what I needed, thanks! I've just changed my kitchen taps, and can't get them watertight.
You are welcome!
I’ve never have done but I will give it a try now. I’ve fitted a compression fitting before where no matter how tight I tighten it it was still leaking, ptfe tape could have saved me from changing it to a new one
You may not need to put PTFE tape on the olive but it's a precaution. I've done enough fittings where I couldn't get a good seal no matter how tight the nut was and had to unscrew it and wrap a few turns of PTFE over the olive, tighten it back down and, voila, no leak. Now I just put the PTFE on in the first place and it never leaks. In an ideal world it might not be needed on a compression fitting but I can't see it ever doing any harm, only good.
Hi mate .I'm also no plumber , I have a few property's I rent out .one I'm attempting to replace kitchen sink .all is going well apart from the compression joints are weeping . The new flexi pipes are shorter so I've lengthened with joints ... can I undo them and use this tape on the thread ? .
yes if they are compression fittings,
Nothing wrong in applying PTFE to an olive.
No offence, but I would have given the pipe a quick wipe with very fine grade wire wool before fitting the olive to make sure that any dirt or oxidisation was removed and give a pure metal to metal contact between the olive and the pipe..
Great point, thanks for the comment
Have you ever put tape on a pipe before?
Only put tape on PVC pipes as an emergency but not PTFE 👍🏻
You put your tape on anti clock wise instead of clock wise, also it would of been easier for you to spin the pipe when wrapping the tape.
I thought he put it on clockwise in the same direction as nut is turning. Technically it's only getting squashed so doesn't really matter.
Thanks for the tip 👍🏻
This is a comedy video. Compression fittings use metal to metal seals. If it weeps its either too loose , badly overtightened or something is scratched.
glad you enjoyed it, thanks for the comment
You dont need PTFE on a compression fitting!!!
u need for sure
It does no harm especially when working with older pipes or re-using existing compression couplings.
In that case WHY are so many RUclips viewers including plumber advocating using PTFE tape 😒😒😒😒😒
In an ideal world, you shouldn’t need to use PTFE tape but it’s fine to use when required ie on old pipe etc. I would always try to do the job without first then use it if required.
The clue here is "compression" fitting... you do NOT use ptfe tape on compression fittings
This is incorrect. The way these fittings work is as you tighten the nut the olive not only gets pushed home into the fitting, but it gets squashed to make a seal against the copper pipe and the fitting, hence compression fitting. No need for PTFE on the olive. PTFE is for use on male tapered pipe threads.
It's a belt and braces approach it cannot do any harm.
Yet even a perfect compression fitting will weep a lot of the time, probably slightly lower quality of typical DIY store fittings, imperfect pipe or so on, and with a few wraps of PTFE tape it will not leak.
We all know the theory of how compression fittings are meant to work, but PTFE is for real life when they simply don’t work as they should. Much easier to apply PTFE than have to constantly fiddle, turn water off, fiddle again etc.