PE Pipe Connection

Discussion in 'Irrigation / Sprinkler Forum' started by Duke76, May 6, 2009.

  1. Duke76

    Duke76 New Member

    Messages:
    34
    When I bought my house I had a partially installed irrigation system drawing water from a lake. The last step of the installation is to connect the pump (which is located on a floating dock) to the onshore PVC piping for the system.

    I am connecting PE pipe from the pump to the PVC using barbed fittings. The Silverline website says I can dip the end of the pipe in hot water to soften it. Does this work ? Would a hair dryer work ?

    Can someone give me any other tip on how to force the PE over the barb ?

    Thank you.
  2. Wet_Boots

    Wet_Boots Sprinkler Guy

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    798
    Location:
    Metro NYC
    Wait for a really hot day :)
  3. hj

    hj Moderator & Master Plumber Staff Member

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    26,614
    Location:
    Cave Creek, Arizona
    Pvc

    I assume you know that barbed fittings do not work directly into PVC.
  4. Wet_Boots

    Wet_Boots Sprinkler Guy

    Messages:
    798
    Location:
    Metro NYC
    Without a slip x barb fitting, it will be a difficult task.
  5. Duke76

    Duke76 New Member

    Messages:
    34
    Thanks for the comments. Let me clarify.

    The PE tubing gets a barb x threaded stainless steel fitting. I'm having trouble getting the barb inserted far enough into the PE for an acceptable fit. I need to temporarily soften the PE to get the barb inserted. The manufacturer recommends hot water but I'm trying to avoid having to carry a bucket of hot water from the house down a 200 ft hill to the worksite. That has accident written all over it!!! But that may be the best alternative.

    The PVC side gets a PVC threaded x slip adapter.
  6. hj

    hj Moderator & Master Plumber Staff Member

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    26,614
    Location:
    Cave Creek, Arizona
    heat

    A torch held far enough away and waved back and forth will heat it up, and I hope it is not a PVC male thread adapter.
  7. Duke76

    Duke76 New Member

    Messages:
    34
    Thanks HJ. I can't remember what PVC adapted it is and I'm not there to look. I've researched it before but can you refresh my memory. PVC female with steel male is OK but the reverse is not? Is that correct ? And is it because of expansion?
  8. Wet_Boots

    Wet_Boots Sprinkler Guy

    Messages:
    798
    Location:
    Metro NYC
    There are compression fittings for polyethylene pipe, if you don't want to use barbed fittings.
  9. rayh78

    rayh78 New Member

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    78
    Location:
    Virginia
    Electric heat gun works great. Hair dryer would also work just a little longer.
  10. Gary Swart

    Gary Swart In the Trades

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    7,347
    Location:
    Yakima WA
    I've hot water, works so-so. I've used my torch, works but easy to overheat the pipe. I've use a hair dryer, works well but pretty slow. I've used a heat gun, work the best.
  11. Wet_Boots

    Wet_Boots Sprinkler Guy

    Messages:
    798
    Location:
    Metro NYC
    I'd think one could pour boiling water into a small thermal water jug and haul that a few hundred feet without calamity.
  12. Duke76

    Duke76 New Member

    Messages:
    34
    I believe it is 1 1/4" ID.
  13. Duke76

    Duke76 New Member

    Messages:
    34
    Thanks to everyone for their ideas. I used a hair dryer for about 5 minutes and that did the trick.
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