K copper to pitless splice.

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by adkroot, Jul 2, 2016.

  1. adkroot

    adkroot New Member

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    I have to splice in a short section of underground tubing between 3/4 k copper and a pitless. Is my best bet for a sound and worry free union sweating in a section of k copper with a coupling, or is there a more "bullet proof" approach that I can bury and not fret over?
    Thanks
     
  2. plumber69

    plumber69 In the Trades

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    You have to silver solder under ground. They make fittings for this
     
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  4. hj

    hj Master Plumber

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    quote; You have to silver solder under ground

    That is underground AND inside a building
     
  5. craigpump

    craigpump In the Trades

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    Why would you use copper when 160 or 200 psi poly is easier to work with, less expensive and will last forever?
     
  6. adkroot

    adkroot New Member

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    The existing water service from pitless to pressure tank is 90' of copper. It's not a new install. Can't justify digging up 90' of driveway and lawn when I have a 8' section exposed and ready to repair.
     
  7. craigpump

    craigpump In the Trades

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    Understandable
     
  8. adkroot

    adkroot New Member

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    Would a pack joint coupling be the way to go?
     
  9. craigpump

    craigpump In the Trades

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    Why did the previous connection fail?
     
  10. adkroot

    adkroot New Member

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    Not sure. It was sound for 10 years and then began leaking. It's well below frost. There is substantial vibration from the submersible which may have worked on the connection.
     
  11. craigpump

    craigpump In the Trades

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    Hard to believe the vibration would cause a sweat joint to break. But if you think that's the cause, I'd isolate the pitless from the copper with a section of poly.
     
  12. adkroot

    adkroot New Member

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    No, the joint that failed is a pex to copper connection. It wasn't a sweat joint. I need to splice in a 7' length from the pitless to 3/4 k copper and wonder what is the most sound approach for underground. I'd like to continue with copper right to the pitless.
     
  13. fullysprinklered

    fullysprinklered In the Trades

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    Do I need to know what a "pitless" is? I'm assuming we're not talking prunes and cherries here.
     
  14. craigpump

    craigpump In the Trades

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    Sweat it in with silver solder
     
  15. adkroot

    adkroot New Member

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    Pity-less maybe is the right phrase in this instance. Bad planning to have to run 90' of water line and fall a few feet short having to add any type connection.
     
  16. Reach4

    Reach4 Well-Known Member

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    A pitless adapter is a special fitting allowing a water pipe below the frost line to connect to the drop pipe in the water well. The fitting will have a means to allow the drop pipe to be raised up for maintenance and replaced back into place. This pitless carries the pressurized water.
     
  17. fullysprinklered

    fullysprinklered In the Trades

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    Thanks. No frost line in my area. I can't relate.
     
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