Never Use Compression Plumbing Fittings Again! They ALWAYS LEAK. Use These Instead.

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⚠️ Disclaimer:
This video is for educational purposes. Any and all HVAC repair work is done at your own risk. The DIY HVAC Guy channel is not responsible for any possible damages or injuries caused by the use or misuse of the provided information.

[rogerdale]

For polyethylene tubing, use polyethylene ferrule. Don't use brass (a.k.a. olive), it will cut into the poly tubing— brass is for copper tubing. Also, no plumbers tape on threads. (a mistake I've made). —When using those push together things: if/when it does leak, take it apart and re-cut the end of the tube with a proper tubing cutter, don't re-insert without cutting off that 14 inch of buggered up tubing. Also, when using compression fittings on poly, the brass sleeves are important to keep the poly tubing from collapsing. It looks like the sleeve is integrated into the barbed adaptors. Thanks again!

[jimpie]

Good video. However, a brass connector to compression on a copper pipe works good. Brass to a plastic tubing works ok, but you must use a metal insert into the plastic tubing. Without that support, it will always leak. I would also attach the copper tubing to the wall and also the plastic tubing. If these are not held down, someone could tear them off by accident.

[m.g.]

The compression water fittings assembled dry will tend to leak, assembled with a teflon pipe dope or even a wrap of teflon tape will help prevent leaks

[tomn]

Thanks for posting the video. It was a headache for myself until I learned when connecting to poly tubing we must have a insert in the pipe to prevent leaks so the compression fitting, ferrule can really clamp down strong.

[sharigordon]

I was having such a hard time installing the traditional brass fittings to connect the two lines together. I was going to buy more of the same, but asked if they had what you are recommending and they did. It was so simple to install. I can't believe how much time I tried with the old way. Thank you! I did overpay for it at Ace at about $6.99 for one and the link that I just now clicked on that you provide gives you a 10 pack for $6.99. I might have to just buy the pack to have them on hand. Thanks this was very helpful!

[ledoynier]

basically i'd do the exact opposite you've done. those push-fit fittings are made for plastic tubes. they will eventually fail on metal tubes since they can't grip as well on them..
The compression fittings never leak, unless you install them like a plumber that thinks more torque is more betterer. crushing them is what makes them leak almost everytime. screwed to contact then a light snug is all that's needed with these but everyone insists on cranking them to hell then wonder why they piss water everywhere :p

[purpleidea]

The the plastic one you pointed to was leaking because it was done wrong. You can't use compression fittings on plastic tube without the copper inserts that go inside to stabilize them!

[hollidaydoc]

My favorite plastic fittings for 1/4" tubing are the John Guest fittings. I have used them throughout the house running RO water to multiple sink faucets and ice makers without any leaks. They also make inline quick connect valves as well.

[crunchyroll]

Tons of value on every single videos, thank you

[caroleolsen]

OMG, I have been trying to figure out a problem I have adding drip irrigation to my Tower Garden. I just happened across your channel and found the answer in this Podcast. LOL What is the most amazing is you live in my home town!! Go figure... Thank you very much for your channel, I am now subscribed.

[sandrab]

Thank you!! I need to buy tubing and fittings for my swamp cooler and this really helps. I love the push to connect idea for repair when tubing gets punctured. Love the plastic ones. I did find that they have them at Lowes, so they probably have them at HD.

[Nine_]

Cheap plastic push on connectors do leak over time especially when they are outside. Barbed fittings reduce the ID of the tubing, but they work. Brass ferrule fittings work great. On cooper the tube needs to be clean and you should use a little vegetable oil on the ferrule. It also helps to anneal the copper a bit with a propane torch and let it cool naturally. On the plastic part just use vegetable oil and only finger tight plus about a half turn, then turn on the water and tighten until it stops dripping if it’s dripping at all. Ferrule fittings work just fine and do not deteriorate like plastic in the weather. They been around forever. I absolutely do not trust cheap push to connect fittings for water in a home. If that fitting breaks that 1/4” line could do a lot of water damage.

[randallmarsh]

those metal brass inserts are almost a must have whenmessing with plastic tubing, ,the quickdisconnects are beutiful when it comes to hooking up plastic lines whether their water or air. its better to use an insert on the quick disconnects, but i have had fair luck with out them but better to have .
ty for reminding me about the connectors, being an x trucker i forgot all about those.

[richlikeg]

Very helpful, I am always hesitant with any flare fittings or plumbing in general. Bad experience with water flooding

[sailmeday]

very cool tips thank you for your videos and always looking out for your customers .

[VABC]

Nice! Seriously thank you for taking the time to make these useful videos. Learn a lot from you . Best regards, Greg in Vancouver

[mdavid]

Thank you for the information and the links.

[kennylavay]

If installed correctly the compression fittings work and do not leak. The push fit you are talking about is a lot quicker, but i will stick to the compression style.

[OcRefrig]

Good video ! Yea, totally agree on the brass coupling they seem to leak after a period of time. Also agree on the poly fitting. I have used them for 10 years now & they do work well. No leaks so far on a water filter job using poly fittings after 10 years. Was there a couple days ago & still doing well.

[TheJakeRobinson]

QUICK QUESTION: I want to add an in-line carbon water filter - can I just cut the supply line and insert each cut end into the filter w/o a compression fitting? 🤔 Thanks🤠😎