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Propress Fittings

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BDR529
BDR529 Member Posts: 292
Been told propress on hydronic system with antifreeze will not be a problem.
Had my doubts, and now found a few with the green death.

Could it be a pipe prep issue? I don't think so.

Comments

  • GW
    GW Member Posts: 4,736
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    Not sure what that means, is it leaking?
    Gary Wilson
    Wilson Services, Inc
    Northampton, MA
    gary@wilsonph.com
    ethicalpaul
  • lchmb
    lchmb Member Posts: 2,997
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    It has to do with lubricity. The manufacturer say's this is not a leak and will not damage the fitting.
    mattmia2
  • hot_rod
    hot_rod Member Posts: 22,468
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    Nothing new, apparent glycol at the molecular level can get by the ring?
    While  this is possible on threaded, even poor solder joints, it is certainly possible to have fuzz free joints with all fittings and methods. 
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,829
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    This was discussed on this forum years ago and there is a glycol issue
  • BDR529
    BDR529 Member Posts: 292
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    Leaking? No.
    The fittings in question are 4-6 months old. Seems a little quick. Thought no 3-M pad prepping could be the issue

    Wonder is glycol reacts with the O-ring. Memories of the old Heatway radient came to mind.
  • pecmsg
    pecmsg Member Posts: 4,949
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    BDR529 said:

    Leaking? No.
    The fittings in question are 4-6 months old. Seems a little quick. Thought no 3-M pad prepping could be the issue

    Wonder is glycol reacts with the O-ring. Memories of the old Heatway radient came to mind.

    IS
    Intplm.GroundUp
  • Ironman
    Ironman Member Posts: 7,397
    edited December 2020
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    We've used ProPress for over 10 years on everything hydronic, with and without glycol, from solar to radiant floors, SIM, etc. Never had a joint leak that was properly prepared.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    STEVEusaPAIntplm.Zman
  • BDR529
    BDR529 Member Posts: 292
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    I would have to say no, not prepped right or as i would prep it. Simply put the pipe is dull not shiny.

    I know the service co. that did the install, just sad. What dose it take to hit it with Scotch brite pad and a reamer.

    OK, bad prep work.
  • pecmsg
    pecmsg Member Posts: 4,949
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    Have you tried repressing the fitting in question?
    The jaws need to be lined up as close as possible.
  • Tom_133
    Tom_133 Member Posts: 891
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    Im not trying to hi-jack this thread, but cant find info on my M12 Milwaukee jaws sticking to the point of needing to beat the jaws to loosen? I can start a new thread if necessary
    Tom
    Montpelier Vt
  • Ironman
    Ironman Member Posts: 7,397
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    Put a little lube on the jaws and make sure you push the jaws firmly against the fitting when pressing.

    Some brands of fittings seem more prone to do this.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    STEVEusaPA
  • GroundUp
    GroundUp Member Posts: 1,955
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    Is the insertion depth marked? Viega recommends NOT scuffing the pipe with ScotchBrite or other abrasive, bare new pipe is the best sealing surface you can get as long as it's clean. Any little imperfection in the sealing surface can create a glycol seep like this. Something as simple as pocket lint or even dust. It may hold water or air, but glycol is a funny thing and will find a path. Not a leak, just the green fuzzy seep. As Bob mentioned, threaded and sweat joints are not immune to this either.
  • Erin Holohan Haskell
    Erin Holohan Haskell Member, Moderator, Administrator Posts: 2,344
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    @Tom_133, please start a new thread. Thanks!

    President
    HeatingHelp.com

  • BDR529
    BDR529 Member Posts: 292
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    No I didn't repress, not my work. Also, I don't carry the tool in the truck unless needed.

    NOT to scuff on new pipe. Contradictory to what the class I took.
    F.Y.I. pipe was not new on this job. Can't remember if it was a Viega fitting or not.

    Glycol is nasty anyway. Always a trade off.
    I was stuck on the bad prep issue or O-ring reacting to glycol. There is a well so who knows what is reacting with what.
    Alot of cooks in the kitchen.