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Working with 10 year old pex-a?

ChrisJ
ChrisJ Member Posts: 16,317
in THE MAIN WALL
Hi All,

Will be installing recirculating hot water for my parents in a few weeks and just wanted to know how flexible is pex-a when it's 10 years old? Will I be able to stretch it as normal? This is all Whirsbo pex-a.

I seem to recall a trick involving a blow dryer or heatgun but I don't remember what or why.

Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

Comments

  • ChrisJ
    ChrisJ Member Posts: 16,317
    Hatterasguy said:

    Dan, somebody hijacked ChrisJ's account again.........................

    Dangit Jim, it's not my house!! :)

    Mine is all black iron, copper and brass. Like a MAN uses! :)

    I gotta make pop happy, right?

    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

  • KC_Jones
    KC_Jones Member Posts: 5,840
    Shouldn't this be a thread about converting your dad's house to a steam mini tube system? Otherwise I agree with Hat.
    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15
    Solid_Fuel_Man
  • ChrisJ
    ChrisJ Member Posts: 16,317
    KC_Jones said:

    Shouldn't this be a thread about converting your dad's house to a steam mini tube system? Otherwise I agree with Hat.

    You have no idea how many fights we've had. I've begged, I've pleaded.

    Not even steam but just plain radiant. When he was building the house I tried so many times to get him to do radiant. It wasn't even about money, he wanted simple a reliable, like his 1958 forced hot air furnace was.

    Bleh.

    You're not helping my blood pressure or my migraine.

    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

  • Firecontrol933
    Firecontrol933 Member Posts: 73
    Not sure if I should respond or not with the banter going on. LOL

    Yes, heating up the pex will help. Had an older system that I had to replace the manifolds and expanding it wasn't the problem, it was the memory for it to seal back to the fittings. Heating the tubing up helped seal the multitude of leaks I had and this was what Wirsbo suggested I do.
    ChrisJ
  • ChrisJ
    ChrisJ Member Posts: 16,317
    Firecontrol933 said:

    Not sure if I should respond or not with the banter going on. LOL

    Yes, heating up the pex will help. Had an older system that I had to replace the manifolds and expanding it wasn't the problem, it was the memory for it to seal back to the fittings. Heating the tubing up helped seal the multitude of leaks I had and this was what Wirsbo suggested I do.

    Thank you for responding I really appreciate it.

    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

  • ratio
    ratio Member Posts: 3,793
    How hot did they want you to get it? Good and warm, or hot like what you're supposed to do to let the PEX reform from a kink?
  • Mark Eatherton
    Mark Eatherton Member Posts: 5,858
    Do your folks have city water (chlorine)?

    If yes, might want to reconsider the use of older PEX tubing. Newer PEX has different abilities to resist oxidative potentials of chlorine...

    ME

    There was an error rendering this rich post.

    SWEIRoohollah
  • BigRob
    BigRob Member Posts: 324
    I cut some pex from 1999 and was messing with it. In my case it was very resilient, even after running at pretty high temps for years. I was amazed and posted some pics here.
  • Roohollah
    Roohollah Member Posts: 135
    Dear Professionals,

    To our experience , we have piped a Hotel's heating and refrigeration systems by Wirsbo Eval Pex for nearly a decade . Last year , Manager of the Hotel Asked us to repipe a Hotel's room due to redecoration . We cut 40 mm Pex and Expanded to the new Fan coil . When we were expanding the Pipe we saw linear superficial cracks over the pipe ,and it took all our attention to meticulously inspect the pipe and after taking a sample of the pipe to be expanded more than usual , we just found that The cracks were just about the diffusion layer of Eval Pex which reacted to expanding process . In fact, Wirsbo Pex is an out standing breakthrough in Plumbing industry .

    I have attached the result of 30 years experience of Pex A pipe , and hope it will be helpful.


    Thank you for bearing my comment ,


    Yours Sincerely,

    Roohollah
    SWEI

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