4 MISTAKES Everyone Makes When Using COMPRESSION FITTINGS
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- čas přidán 2. 07. 2023
- Don't make these 4 mistakes when tightening up and working on compression fittings on copper and plastic pipe.
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Another tip, turn off your water when you go on holis
Yeah - learned the hard way. But it was a compression fitting that failed with PTFE, that sealed well but was under tightened and popped off.
Jointing compound is a bad idea on these because it may seal but might not be tight enough
Best test is to tighten loosely, no compound, pressurise the pipe and stop if it starts to leak and just tighten enough to stop it leaking and then a few more flats.
You should be able to undo a fitting and the olive should be able to spin but not move up or down, that's how you know it was just tight enough.
I turned the mains off and the stock cock leaked
In my youth, many years ago, we came back from holiday to find our carpets draped across the bushes in the garden. The neighbours had seen water coming out of the house because of a leak and had gone round to see if anyone had a key that fitted our house. I always close the stop tap when we go away!
Cool tip too
make sure the shutoff is newer and functions properly. Hate for you to turn the knob or flip a lever and it starts to leak at the shutoff or elsewhere, right before you're leaving to the airport 😂😂😂
Glad to see you mention the marking of tightened fittings. It was mentioned to me over 50 years ago as a worthwhile habit and I have always done it. I then go around a job afterwards to check for the marks (bright red is my preference). It has only saved me once but it was in the loft of a 3 story house where the consequences of a leak couldn't have been much worse.
My preference is to do an initial tighten of the olive with the pipe slightly (~1mm) pulled back from being bottomed in the fitting so that all the tightening force acts on the olive and isn't (after the olive grips the pipe) shared with the pipe pressing onto the shoulder in the fitting. I then open it up to see that the olive is seated happily against the fitting (lots of people don't seem to appreciate that the interface between the olive and the nut isn't sealing anything). I then apply potable jointing compound and firm to final torque and mark it.
I also prefer copper olives to brass - usually involved bunging out the olives that come with most fittings.
Thanks for educating me
I have never used joint compound, with compression fittings.
Thanks again
Amazing! I learned a lot from this video. (Been doing things wrong for over 40 years lol) Thankyou so much for educating an amateur.
Thank you for taking the time and care to make this.
I'm better off for it now and can tidy up my project with confidence now! 😁
Many thanks from across the pond--great information, well presented, & humorous to boot!
Thank You...I am a 66-year-old lifelong general-purpose Repairman (plumbing, Electrician, Electronics, mechanic ect.) and I have always had annoying problems with compression fittings.....I'm probably too close to dying to help me a whole lot now but your tips were great...However, It still looked to me like you were winding your Teflon sealing tape the opposite direction than you would turn your compression nut when tightening (I apologize if I'm wrong...I am a bit dyslexic) I'm a Hillbilly in the southern Coal Fields of West Virginia (Almost Heaven with friendly people and at least 10 military-style guns per household).....Love your accent and your teaching style
Well I managed 2 of the mistakes fitting a sink at the weekend. Noticed a drip on the floor today and then saw this video. I'll be taking it apart and refitting at the weekend, cheers for the tips😂
So ... Don't overtighten... Don't undertighten... Great help, thanks!
just tighten it.... easy lol
Exactly! Then he says "and in order to make sure you get it just right.... you mark it with a T". LOL.
Hi, many thanks for all your advice. We’ve just refurbished our shower and want to say how helpful your plumbing tips are.
Very good advice and a well presented tutorial. Thank you.
Top tips from Mr pipe man himself! I keep telling the Mrs, it’s essential to have some pipe lubricant next to the bed, for emergency plumbing situations!😎
😂
For me the best tip I ever learnt was to not place the copper tube hard up against the bottom of the fitting as when the olive grips the tube the nut will pull the tube into the fitting but wont allow a full seal around the olive so prior to tightening the nut back the tube out of the fitting by a couple of millimetre then tighten it up ..job done 👍
thats why i use ptfe tape - i cant be bothered pulling it back a mill or so... so i tighten it in place, pull it apart then add the ptfe tape which solves the issue you are talking about. cheers
Me personally I found this video very helpful and useful! Have a project I'm working on right now and was preferring to use the compression fittings so I'm going to take all his tips! Thanks great vid
very nice presentation, I'm fan. The tips are also worth watching & it's very well explained You had me with the tft tape. a Mistake that I would have made.
Well done! Straight forward and easy to understand.
I have done plumbing for over 30 years and have never used any type of jointing compound on compression joints, guess whet i also have never had to go back to repair a leak either, well apart from the time some one put a nail through the pipe, which apparently i had done two weeks prior to been called out
Bard agrees with you Paul
That doesn't mean that someone hasn't fixed it for you and you never knew that! But I want yo believe you so what are your thricks to avoid getting it undone!
@@antoniogalluccio4213 Maybe delete your post and try again after checking the spelling
Try to be more humble. And what you said just doesn't make sense. Delete yours instead!
❤cool advice,ive used furnox joint compound in the past, the o 10:4 10:49 only trouble is it sets like concrete after a while,making it difficult if you have to remove a fitting.
My favorite fitting is a yorkshire or end feed ,love solder
In all my years of DIY including working along side other trades including plumbers on refurb jobs I have never heard of this. Although I've never had a problem yet, it makes perfect sense and I'm all for good practice. Great video.
Thanks for this. I've made all these mistakes!
Fantastic thanks for sharing this really enjoyed watching and very funny and fun 😂👍🏻
Brilliant! I love your wit!
Great video james very informative
Thank you for the video James, even tho i started watching your videos 6 years ago when i started doing my LVL 2 Diploma in Plumbing and heating.
I'd advise anyone getting into Plumbing to get Monument olive cutter, it can fit in tight spaces, saves you time and effort.
Always great tips thanks
This is golden sir!! Thank you for the information and the laughs, my caravan should be sealed water tight now 😂
Thanks for the knowledge and entertainment.
EXCELLENT advice. I am a hydraulic Engineer and I have spent most of my career training fitters how to avoid leaks in high pressure systems. I watched this video to find similarities. Everything you have said is bang on and CORRECT. In respect of under-tightening, we get the nut spun down to the point where it contacts the 'cutting ring' (Our ring cuts into the pipe - slight difference) and we refer to that as the 'fixed point'. That is the point at which all tolerances from threads, tapers diameter differences are allowed for. We then mark the nut and the pipe and turn 1&1/2 turns. That is our industry, yours may differ. We then put a high visibility mark on the pipe and nut. Before start up, all visual checks can be made easily. GREAT VIDEO
Cheers! Interesting to hear how you do it in other industries.
Cheers ... Jointing compound.. need to find that. But I always put a wrap or two of PTFE tape on the olive of new fittings, just in case there is a small discontinuity (Roger, Skill Builder tip).
Another tip I find useful is clean the pipe before fitting, with fine grit sand paper or one of those cleaner wire brush tools. can make a difference.
Lastly another over tightening danger: stress can build up in the nut then one day it might crack and all hell will break loose when least expected, has happened to me.
Caravan reference. Spot on. Exactly why I watched your video. Pipe leading to toilet is leaking from the top of the compression / isolation valve.
Thankyou mate great tips
Great guy, very amusing and informative. Thank you lol 👍
As an offshore worker, PTFE tape on compression fittings (Swagelok or Parker A Loc) is a No No. I did a bit of DIY plumbing a while back and the fittings (from a large DIY store) squealed on make up and the depth the pipe went in was shallow, so I went and got some Yorkshire Imperial fittings. They just felt so much better on make up. One other minor point, turn your shifter over 180 so that the nuts contact point on the moving jaw is down at the bottom of the jaw, not at the top of the jaw.
Hydraulic fittings too a no-no where I worked once, any tape fragments can plug up suction ports and get into spool valves
@@jagmarc Yes never use PTFE on hydraulic pipes.
Sparky here chosen by god, thanks for the tip. Would you like me to teach you how to tie your shoe laces….
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Read your comment and stopped watching at 2 mins in . Any plumber that uses an adjustable spanner backwards is not worth watching .
@@roygroves5983 Let's not be too hard, I often used a wrench backwards when I was learning. But he's doing well to boost sales of plumbing supplies :)
Good video 🎉mate you shared valuable information experienced explains everything, keep up your sharing mind 🎉
I am watching this from my caravan hopefully my shower will no longer be leaking.. shortly lol
Awesome stuff - would have been useful to me a few years back - did a bathroom refit at home - and had to convert a main pipe in the floor with a compression fitting I used a 22mm olive in an old water pile to convert it to 15mm - old 7/8 water It had the smallest leak but take ages to seal it.
you buy the old pipe olive ,good luck trying to fit a 22 mm olive on old pipe :)
I've used an olive puller several times and it's always worked really well. However that olive cutter looks even better.
some great tips there thanks !
Thanks from australia mate.good info👨🔧
Wow...never knew these great tips!
Good tips there , thanks
Nice one, helped me out 👍🏼
thank you. great advice👍
Another great video. Thank you.
Good point about low quality olives. Some might not have been annealed and therefor wont compress into the tapers properly. Just get them red hot and drop into cold water - so long as they are copper.
I recently had to use PTFE tape under and over the olive on some compression stop ends and hopefully this will hold up until I get my bathroom replaced and get a pro to get rid of the whole thing.
Good stuff!! Thanks!
Old schools tip use Hammer on olives by tapping olive while rotating pipe till loose and slides off easy mate
Good tip!
Nice one thanks
Nothing wrong with the direction you put that PTFE tape on, looked correct to me. Just when you said ‘same way you do the nut up’ your fingers were doing an untighten… now go stand in the corner and think about what you’ve done.
BLUB! 😂😂 Thank you sir!
Hi I'm a sparks and if you remember MICC cables which have a similar olive and gland system I had the same thing educating apprentices on not over tightening the olives because if they were over tightened and the cable was moved you lost a good earth as the outer sheath was the earth. Brilliant vid and good tips. I looked for the olive splitter that you sowed and could not fine that particular one. I would like to add that to my plumbing kit. In the past I have used a junior hacksaw very carefully to remove an olive not quite cutting through.
There is another type of olive cutter that looks like a large pair of pliers. One of the 'cutting' jaws of the plier is flat and you insert it inside the pipe. The other 'cutting' jaw is indeed a cutter and cuts the olive. The difference between the 'plier' type and the one shown in the video is that the 'plier' type is operated in line with the pipe instead of at right angles to it.
I am so glad you mentioned at 7:05 about PTF tape round the thread . I come from a family of plumbers and it makes me angry when I see that bodge up under sinks and basins usually fitted by Kitchen fitters (Grrr!) I used to see it a lot when as a sparks I cross bonded pipes.
They sqeek because the machined threads in brass need lubrication. A little oil will do that.
Only one face of the olive is a sealing face. The face the nut runs on is not a sealing face.
great vibes!
Excellent thanks 👍
I spent most of my career doing stainless tubing. If you need compound or tape you should find another trade. Lubricating the joint allows you to over tighten the joint.
AS he said....the quality of imported copper - brass fittings are not as good as the older stuff, so tape or jointing compound is advisable.
Great video. Been years since I’ve watched your videos. Only just showing up again for me!
The algorithm strikes! Welcome back 👍
Learned something new about the PTFE tape - thanks!!! #enlightened
Very good ideas.
Great video!
I had to replace a mains stopcock attached to the blue 25mm mdpe pipe under the kitchen sink. Could not unscrew the nut to remove it. Had to use an angle grinder with a thin cutting disc to very carefully cut through the brass nut and olive underneath. A rotary tool would be safer, I think.
Cordless multi tool with metal cutting blade.
Hey PlumberParts! Thank you for the video. Great Tip with the Olive Cutter tool. You are Plumber Knight! :)
Brilliant thank you
Great video and its made with humour
No PTFE at all. One thing which not mentioned is what I always do. When first sliding on the olive and entering it and the pipe into the fitting is just before tightening, is pull the pipe out about 1/16". Reason for this is, if you need to remove the pipe later for whatever reason and refit it the pipe will not bottom out before the already compressed olive
If I put compound on a compression it was an instant fail or a rap across the knuckles with a pair of sixes. North Thames Gas apprenticeship. 4 year apprenticeship, 18 years working. How times have changed. Surprised you did not say LS-X, a must on them fooking doughnuts :) Also under tightening is always better than over, as you can always nip it up, over, no chance.
Brilliant, cheers! Can I use FERNOX LS-X as jointing compound?
Great video cheers
Great ! Wish I had seen this when I was a lot younger. Yes I learnt by bitter experiance overtightening the fittings. Ptfe tape actually on the olive makes a lot of sense. You learn something every day.
I like the mark you make on the fitting once tightened.
Next episode how to fix a leak in your blow up doll😅
Another great video mate! Simple but effective for people! I have learned a lot from your videos ,not particularly from this one 😁 but love your videos and your talent in making them interesting! Looking forward for the next one!!! And yes I am one of those guys that have a drink after work and watch your videos until the end. 👍All the best, take care
Haha! Cheers Rob - enjoy your beer! Will chat about your comment on Locals this Thursday: plumberparts.locals.com/support/promo/PLUMB1M
Brilliant info, cheers.
Glad it was helpful! If you want to talk LIVE with me about how flippin' amazing this video was, pop on to Locals for this Thursday's livestream! plumberparts.locals.com/support/promo/PLUMB1M
@@plumberparts I'm not a plumber but I like to fix the little bits myself, I get great satisfaction from fixing the little bits and of course saves money. I know my limitation and understand I'm not a professional. Keep up with the help. Many thanks.
Make sure pipe fits and correct length, make sure both sides of the olive are on the pipe by giving it a nip and visually checking it. In tight spaces, I have used a fitting away from the joint to give the olive a squeeze so it cannot move. A few wraps of PTFE tape around Olive or potable water sealing paste where applicable and no problem. You are posh poetable water I have always said potable water (Drinking Water). Not to tight not to loose and never ever think your brilliant and do not need to double check everything, it will still get you every now and then. The amount of experts I have met in life at all things who cock up all the time because they know they are perfect and do not need to check! Everyone can get caught every now and then so check check check. I stripped and assembled a hot water tank bottom fitting three times resealing each time and it still leaked to find at two o’clock in the morning a cracked reducer fitting, I had used the old ones! I had purchased new ones but the old fittings were ok (Not). It was a home job as well.
The problem is actually the crappy olives which come with the joints. I'm not a professional but I have been doing odd plumbing jobs since the 1960s. Compression joints were never a problem then. You just screwed it up finger tight then gave it a quarter turn or so and you had a joint that would never leak.The olives were a very soft gold coloured metal. Today the olives are a harder more copper coloured metal. I always now use PTFE tape as you describe or at least one joint will leak and will not seal. I went into an old shop about 15 years back and they had a big box full of gold coloured olives so I bough a handful. After that I did not need any sealer until they ran out.
you can buy pure copper olives (vs the brass ones which come with the fitting) - guessing these are the ones you are describing (they are softer and more reddish in colour than brass)
Who knew again? Great tips. Thanks.
Great video James. By the way, you had in fact wrapped the ptfe around the thread the correct direction, but did it the wrong way around the olive.
Excellent video - so glad I watched before attempting to use compression fittings.
Quick question - can you still nip up a compression fitting that has jointing compound after it’s been in place for a week, or does the compound go off and crumble if you try this? I thought I’d tightened it enough, but after a few days it started to seep (not condensation).
Thanks 👍
Great video, made my live easier:) Many thanks !!
Radiator valves still need PTFE though. Maybe this is where the confusion comes from as it's a common diy job. Love this video. Genuinely funny and love the messy work bench and crap osb shelves. That's how most of us role 😂 well done mate.
Just found your channel and started watching, you give good advise and are quite entertaining but I was a bit confused at first cos I thought Bradley Walsh had his own plumbing channel.
Another tip, don't run your finger along/around the end of a freshly cut copper pipe. It will slice you open like a razor blade
True - even when using a pipe slice which is better than a hacksaw that's for sure.
Not a plumber, but I use some grease on the threads for the nut and a very thin smear on the outside of the olive. No leaks on the few I have done.
I welcome ppls feedback. Cheers.
Love this guy 🎉
Outstanding Performance ❤😮😊
Great videos. I just bought a 3/4" compression ball valve to replace my home main shutoff just in case my shutoff at the street doesn't close enough to solder. However, I just noticed it doesn't have a packing nut under the lever! Never seen this before. Is it something new or just cheaply made therefore I should buy one with? Thanks so much!
"Nah, I've got feelings!" Hahaha, love it! Roofer for 27yrs, don't bring your "feelings" to work. That is a rule. Also don't let your co-workers know that you don't like a nickname they give you 'cause that nickname will become your birthright and show up on your new uniforms permanently! No place for thin skin in the trades!
"Ohh I've got feelingings" 😂 gold...
Using the olive as a cheap engagement ring tip was a good one. Will let you know how I go...
I recently (a few days ago) found some "older" USA made 1/2" compression fittings and used one for a hose-bib / sillcock installation...no joining compound , no squeaks, no leaks...
I use a Dremel for cutting olives😄
Apsolute quality teaching👊 I've seen so many ptfe tape joins around treads.exactly the same though what on earth is this😄👍👍👍cheers bud
Glad you enjoyed it mate. If you get a second, please pop along to my livestream on Locals this Thursday: plumberparts.locals.com/post/4240778/ale-army-raw
Good one 😊
I only put compound on the side where the water actually reaches - eg the fitting side. Why would you need it on the nut side? Top tip, push the olive and pipe down into the fitting first to gauge its location along the pipe, then hold it with your thumb on the pipe, pull them out of fitting - you can then see where it sits on the pipe to paste up. For those saying you shouldn’t use anything, maybe you don’t but you can’t just deny the material science behind helping a joint work better. It’s about understanding what is going on inside the joint
Moved into a house and the central heating leaked. Lots of the olives were so lose I could turn them with my fingers. No way to drain the system. I added over 10 drain cocks and shut of valves so I could isolate the system and replaced whole joints or just olives. Great tips about paste and over tightening.
U are as hilarious as u are knowledgeable in your craft, sir ! If u ever cross the pond, stop by in upstate NY!👍🏼
Thanks🔧
Many moons ago when a new version of the Electrical Witing Regs came out with major changes to Earth bonding we had to use conductive PTFE tape on plumbing fittings, but I believe the requirement was removed.
Another way to remove an olive is with adjustables. Over the top of the olive, tighten to the width of the pipe and hit downwards. Granted it might create more of a mess but works in a pinch
I've always used jointing compound but just a thin trace, not like icing on a sponge cake. And put some on the pipe before sliding the olive on because you're then sealing another potential leak point.
Olive tip I was taught by an old school.
If the olive is just so put something hard being it and tap firmly the other side and it just slides off.
This really works.
Yep I've done that one a few times too! Pop on to Locals this Thursday for the livestream if you get a second: plumberparts.locals.com/support/promo/PLUMB1M or here for the live stream: plumberparts.locals.com/post/4240778/ale-army-raw
I served my time as a spark on the renovation jobs many ..years ago and never ever seen jointing compound put on compression joints. Then years later we used to install electric showers with a minimum amount of plumbing from a cold feed using compression fittings and never once where advised to use jointing compound…….so thats why they squeaked and some leaked !
That olive cutters a nice tool to have.
I'm not a plumber by trade (IT tech) but I have done alot of plumbing over the years and never bothered with jointing goop but having seen it I can see why you might want to use it as lube more than anything.
Normally if its a stubborn joint thats decided to weep, I've just put half a dozen wraps of PTFE to seal the deal but thats been the exception not the rule.