Fix Your Compression Fitting Mistakes 

I think jointing compound and ptfe on the olive serve the same purpose really. Thanks for watching!!

As a plumber I fixed leaks over compression fitting with with teflon and other stuff on it. Nothing is necessary over these fittings. Everything else causes more problems

Thank you, very appreciated! Thanks for watching!

Glad it helped, thanks for watching!

Glad it helped! Thanks for watching!

What about putting the PTFE on the pipe before you put the olive on so it will be under the olive?

Thank you! I believe PTFE is resistant to oil, so should be fine. Thanks for watching!

Glad you liked it, thanks for watching!

Glad it helped

Glad to hear it! Thanks for watching!

Holly shit!!! Wait you put it backwards to tighten???? Makes sense but I'm scared.

Thanks for watching!

Thanks for watching!

Thanks for watching!

Yes absolutely a good way to know someone doesn’t understand how the joint works

I understand how the joint works, but I'm still putting tape because i had to cut the old one off due to corrosion. In this situation the tape is not to keep the inside water from coming out, it's to keep the outside water from going in. I'm hoping the tape prevents the nut from getting drips in the threads over the years and can actually be removed in the future when needed.

Glad to hear, thanks for watching!

You’re very welcome! Thanks for watching!

Thanks for sharing and thanks for watching!

@@TheDiligentDIYer1759 Hmmm... I should mention that doing heaps of generic replies like that (took a peek through other comments) is a bad idea, it comes off as extremely desperate. If you are just trying to get lined up for some sponsorships then I get it, but otherwise stop listening to whoever told you to do that. It's the same as anything else, say something if you have something to say.

Thanks for watching!

Yes absolutely, turn backwards until you feel it click into the thread, then go forwards. Thanks for watching!

Thanks for watching!

Yep you could leave the old olive in place, or you can remove it either using an olive puller or a hack saw. Definitely one you could tackle yourself. Thanks for watching!

@@TheDiligentDIYer1759 Thanks for the reply. On my last check I noticed something by only laying on my back with a torch. The screw inside the stop tap handle of the fill loop was loose. Previously I thought the handle moved in the way it did because it had seized shut and then severed to the switch when I turned it. Tightened the screw - the water flowed into the boiler. My kind of 'fix' :thumbs up: Subscribed btw.

Thank You! I believe they are the same thing, teflon just being a brand name and ptfe being the chemical name. Thanks for watching!

Thanks for watching!

Glad it helped! Thanks for watching!

I think paste under the olive would also be okay, thanks for watching!

There shouldn’t be any inside the pipe, you’re putting the paste on the olive only, so it won’t get into the water. Thanks for watching!

Yes

It’s okay if some jointing compound gets under the olive, in fact it would be hard to not get any under. I wouldn’t put any ptfe on the threads for a compression joint, it will make it harder to do up and doesn’t do anything for leaks. Thanks for watching!

That’s terrible work from a professional! Thanks for watching!

Glad it worked for you, thanks for watching!

Good tips, thanks for watching!

Thanks for watching!

Yes good point, you don’t see so many copper olives though, I guess they are slightly more expensive perhaps. Thanks for watching!

@@TheDiligentDIYer1759 Hello Mate,the copper olives are easily sourced from Plumbers merchants.May be a couple of pence more than brass,but in my opinion 100% worth it counting the cost of leaks under flooring etc. Measure twice cut once! 👍🤝

It isn’t required, but definitely reduces the chance of a leak. Thanks for watching!

If you’ve got an olive in there, it definitely won’t come through the thread

Probably a problem with the olive, water has to get past the olive to make it to the thread which is why adding PTFE tape to the thread won't help, in fact too much PTFE tape on the thread just makes it really hard to tighten/remove. Personally I believe PTFE tape on the thread is unnecessary. Check that the pipe and and the olive aren't damaged. Use jointing compound on the olive such as liquid PTFE tape or the gel although the liquid stuff is better. Then use a small amount of PTFE tape, most DIY'ers use way too much, 6-8 times round is plenty for most compression joints, but make sure you go round the correct direction as described in the video. Too much PTFE tape (12+ time round) makes it very hard to tighten the compression joint and will compress the olive too deep onto the pipe making it almost impossible to remove later and in the worse case damage the pipe. Do not over tighten, when you fill the system with water there may be small leaks at the compression joints, tighten gently until the water stops leaking. If you find yourself using a large amount of brute strength then you've used too much PTFE tape. Hope this helps, not a plumber, but I find this works well.

OK thanks for tip information 👍

@@simonboulton978 oops, PTFE tape first, then jointing compound. Just spotted the mistake.

Thanks for sharing your opinion

I don’t think lubricant on the thread will make any difference, same for chrome

Thanks for watching!

Thanks for watching!

Sorry I’m not sure what you mean. Plastic pipes need inserts for any fittings used on them. Thanks for watching!

Taping both the thread and olive? Taping the thread would make it harder to tighten up the nut and compress the olive, and since the seal comes from compressing the olive, taping the thread might increase your chances of a leak. Thanks for watching!

Thanks for watching!

It is a contentious issue, but I’ve never had a leak when putting PTFE tape on an olive, but seen plenty of leaks where there isn’t any. Absolute agree on buying quality kit though, Pegler is also my go to. Thanks for watching!

In 50 years of DIY copper plumbing, I've never used PTFE on compression fittings - just the supplied olives/ferrules. Today I met my match in a 1/4" copper tube fitting. Still leaked after 2 separate attempts with new olives and polishing. After looking at this video, I tried a couple turns of PTFE tape over the olive, and OMGosh, a dry fitting at last! Thanks for this tip, DD - it worked for me!

The "shouldn't" and the "can't" are two different things. PTFE is a great help for our less than perfect fitting world. GO for it. Since no harm will come from it's usage. Doing this for a few decades. Nowadays getting some PTFE on the olive is a second nature. A couple of turns make life way easier. Seldom have to go back. ;-)

The problem with push fit is how bulky the fittings are, makes it hard to fit in tight spots, and it’s hard to make them look neat. End feed solder or pressfit is the best in my opinion, solder is time consuming though and pressfit needs an expensive tool. Thanks for watching!

Plumbers will solder if its a visible joint, compression if its not or customer doesn't mind. Pushfit are not as reliable as the other 2 as eventually the rubber seal breaks down and a replacement is required. I don't know where you get the idea that a compression fitting will develop a leak over time, if it isn't leaking today it will still be good in 100 years. Unless it has been seriously manhandled when a plumber comes in to make a change to a pipe connected to that fitting. Pushfits have to be given even more care - be well supported and not stressed by pushing the pipe off centre when working on connected pipe. Pushfit are useful where you can't get tools in to do the others but I would only use them in places that can be inspected easily and I would probably want to change them for new ones after 10 yrs. The leaks you would have seen on your previous installation would have come from the tap connector which is not a compression joint but a threaded joint with a washer. You likely have flexi-connectors on all those terminals you updated - keep an eye on them as the tap connector ends have a rubber washer that breaks down eventually and will leak on to the steel braiding which will then rust and become weak and cause a flood. Inspect your connections every year.

I’ve never had a leak with ptfe or loctite, but seen plenty without! Thanks for watching!

Yes exactly, it can be used to seal leaks. Thanks for watching!

Thanks for watching!

Thanks for watching!

They’re only brass, you shouldn’t be tightening them so much that lubricant on the thread is required

How polite…..

Glad you liked it, thanks for watching!