#1 PEX Plumbing Mistake You Don't Want to Make (A vs B)

PEX plumbing pipe is considered to be one of the greatest plumbing innovations of the past 50 years. But then why are people starting to report leaks, connection faiulures and numerous problems? The answer is easy if you understand what 99% of people dont know about the PEX plumbing in their homes and how to stop this from happening to you. The PEX A vs PEX B debate is the most important info you can know.

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Disclaimer:
Due to factors beyond the control of Silver Cymbal, I cannot guarantee against improper use or unauthorized modifications of this information. Silver Cymbal assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Silver Cymbal recommends safe practices when working on machines and or with tools seen or implied in this video. Due to factors beyond the control of Silver Cymbal, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Silver Cymbal.

[joshcowart]

This comment is a correction of the video and not an attempt to knock it. Many plumbers believe what the video says. For any diy person, as long as you use crimp fittings, you’ll be fine regardless of which pipe you use. Pex a and pex b are compatible. The misconception is that pex a is expansion only and pex b is crimp only. However crimp fittings will work on either one. Expansion fittings are for pex a only. They did make pex b expansion (watts or zurn I think) but it never took off so maybe it didn’t work that well. Actually there’s 2 more kinds of pex but you don’t need to know about those unless maybe you’re doing radiant heating. If you don’t trust what I say go to the manufacturers website it’ll say the same thing

[spartianknight.]

The best thing about this video is you got right to the point and kept the presentation moving. I appreciate that. Thumbs up!

[justincase]

I loved the fact you didn't waste our time dragging out your outstanding 6 min video into a half-hour monstrocity.

Subscribed!!!

[johnr]

Watched several vids on this pipe, You are the first telling me of more than two types and the need for correct fittings.

[WMDbooks]

Love this! Unlike most YouTube videos, this ione is jam-packed with nothing but information—no padding or fillers. Thank you!

[RogueSecret]

There is pex A, B and C.
PEX A is made using the Peroxide, or Engel, method.
PEX B is formed using Silane, or Moisture Cure, method. This is the most common PEX pipe type out there.
PEX C is created using the Electronic Irradiation, or Cold, method of cross-linking.

Roth is Pex C, that pipe is much more chemical free on the inside, a little more stiff, can be used on both drinking water and heating system.
But this Pex you cannot heat up to repair it like you can with feks Sanipex.

[hathawaydj]

If you're worried about flow rates with PexB, you can use 3/4." I had to replace some 1/2" copper that the whole house depends on and went this route with great success.

[shemphoward]

Good Video. I am currently replacing all the patched up copper in my 1973 Airstream with Pex B. It has worked out good because the small vice-type crimper fits in the small confines I am dealing with. It is definitely NOT the "afternoon" project some people online claim- I have been working at it for a long time and it takes a lot of planning ahead to make the minimal amount of couplings in the really small spaces. The volume restriction in my trailer will not be an issue since there were originally fittings right off the water pump that reduced the copper system to effectively 3/8" anyway. In a house I would definitely step up to 3/4" with Pex B.

[starfishsystems]

The pacing on this presentation was fast but ABSOLUTELY CLEAR. Super clear speech (which is hard to achieve) plus super clear audio means that we're hearing exactly what you're telling us. Thank you!

And what you're saying makes instant sense, especially when combined with clear images. So, great writing and storyboarding.

I can't believe I'm saying this. I'm just a random person, what do I know? But man you are a great communicator. Plus now I get to go away understanding the PEX systems way better. This will be with me for a lifetime, I'm serious.

[Lyle-xyeq]

I spoke with Uponor about what connection types could be used on their PEX A pipe. Yes the expansion fittings allow for the greater flow rate, however you can use crimp rings on Uponor too but it will reduce flow rate as you would use PEX B fittings. I needed the flexibility but did not want to invest in the expansion tool for the little plumbing needed from my project.

[jamesburns]

I plan on replumbing next year the old house I just bought and your vid has been most welcome, thank you.

[wchougland]

I have a 70 year old cabin with a mix of steel, copper & galvanized pipe. Been considering PEX, so you’ve provided additional info I need to make the jump. Thank you

[elchimpo]

You’ve helped America understand something that can be quite per”pex”ing 😂😂

[phlydude]

I've seen older versions of Uponor's PEX A use crimp fittings. Note that just having crimped fittings doesn't automatically mean it is PEX B.

[CedarParkOverheadDoors]

This video was awesome and presented at the perfect speed. I was wondering about the different PEX options and this was great. Thank You

[tvn]

Super informative. Straight to the point with really valuable information for this experienced DIY'er with zero knowledge of PEX A, but that is what is in the new house we are buying. THANKYOU!

[bluerider]

I'm my house I have Pex B and they didn't use any fittings except for at the fixture. It's a manifold system so every fixture has it's own run from the manifold. It takes up more room, but you reduce the pressure loss from having a bunch of fittings. Plus it's kinda nice to be able to go to my utility room and shut off water to any fixture in the house.

[SamSam-kezy]

Great video! No gap in speech and to the point. You are an example to all youtubers sir!

[howdyjim]

Thanks! Being forced to replumb house doing some research. This really helped!

[DirtyAnimal]

Appreciate you clearing that up, was one of those things in the back of my head that wouldn’t resolve itself.