Sharkbite and Pex subjected to over-pressure fail in a very smart way.

By AvvE

13 thoughts on “How much pressure can pex take?”
  1. Avataaar/Circle Created with python_avatars sia a says:

    nice blow

  2. Avataaar/Circle Created with python_avatars wazza33racer says:

    great googly moogly………

  3. Avataaar/Circle Created with python_avatars e says:

    I always wanted to know why people attach frankfurters to shop equipment. Thank you AvE! Wiser by the minute.

  4. Avataaar/Circle Created with python_avatars John Johnson says:

    fill it with water n freeze it

  5. Avataaar/Circle Created with python_avatars moparedtn says:

    Y'know, I've used these for several years now on the good old "red & blue" polyethylene tubing
    and as much as I was dubious of the whole shenanigans initially, I have never had one to fail.
    In fact, my own home was totally plumbed with the precursor to today's "PEXB" version of
    the tubing over 20 years ago and to date – zero issues with the tubing itself.
    Yes, we have plenty of sub-freezing temps in winter here.

    A couple of small leaks have developed over the years under the sink and such, but they were
    failures of the cheap-assed crimp style plastic fittings used then – not the tubing itself.
    The repair in those instances? Cut out the old fitting, use a new Shark Bite, done.
    I don't know what the issue was in this video, but I find the results less than representative
    of my own experiences with the stuff.
    Now, if I'd had my druthers? I'm an old fire sprinkler guy, meaning I'd want to hard pipe every
    damn thing I run across in life…thread 'em or groove 'em, I'm good with either.
    – Ed on the Ridge

  6. Avataaar/Circle Created with python_avatars Porter Porter says:

    Pex is more likely to give you leagioners disease because it has pours, unlike copper that will keep you safe for life

  7. Avataaar/Circle Created with python_avatars WayneS World says:

    Sound like a mechanical engineer

  8. Avataaar/Circle Created with python_avatars Charles says:

    Shark bite fittings suck. Please test Pex-A with expander

  9. Avataaar/Circle Created with python_avatars Chris Perrien says:

    Original PEX had some issues with dry-rotting/ cracking over time, that was when it is was installed mostly in mobile homes, it didn't help if it got kinked, bent while being run. Also with possible plastic compounds leaching. Also that old "Quest tubing" gave it a bad rep. Those problems worked against being widely accepted at first or becoming code for home construction inplaces till "about" 2000. I didn't fully really agree with using it till about 2010.

    Shark bite fittings are very expensive , are really good for instant/temp apps, when you have just about no tools or glue, or torch/flux/soldier , and just need to temp connect ,cap, or put a threaded fitting on a pipe(you can use a cresent wrench to disconnect shark-bite fittings , than buying one of chincy $10 C- shaped disconnector tools-which get easily lost ). Shark-bites don't work with regular cold water PVC pipe though. unless they have started making them for that too in the past 10 years. I am out of the field now. SHarks-bites have their "moments", but not for permenant/construction.

    With PEX , it is MUCH cheaper to use plastic PEXconnectors fittings and crimps than shark-bite fittings. Shark-bites are for amateurs/quick fixes , with no tools or just to temp cap pressure lines, for later adds/runs. I would hate to think how much it would cost to do a whole house with shark-bites, total wastage there of specialized "emergency/temp" fittings. Would totally defeat using PEX in the first place. , as far as cost goes . And shark-bites cansometimes "leak" too if there is enough "bendy/twisty force" on the pipe/fitting connection.They can also freeze and leak.

  10. Avataaar/Circle Created with python_avatars TheSunExpress says:

    Nobody in their right mind would go fishing for this PEX crap during demolition. Resulting in even more plastic in landfills / environment for literally no reason. No doubt the plastic recycling cartels won't want to deal with it either.
    Luckily copper costs a fuckwad these days, virtually guaranteeing all pipework will either be stolen long before you even move out (likely), otherwise properly recycled (slightly less likely).

  11. Avataaar/Circle Created with python_avatars tjp says:

    The tube still holds up

  12. Avataaar/Circle Created with python_avatars The Squirrel says:

    You live up there in Canadia, so you'll appreciate Pex's ability to survive freezing. It beats the hell out of PVC plumbing.

  13. Avataaar/Circle Created with python_avatars FJB says:

    should have tried the non-sharkbite fittings to see what the pex could withstand

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