(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 8 of 8

Thread: Copper Pipe Support Question

  1. #1
    DIY Junior Member ash...housewares's Avatar
    Join Date
    Apr 2013
    Location
    Lincoln, NE
    Posts
    4

    Default Copper Pipe Support Question

    I need to run a pipe from my basement laundry room to my back yard for a sprinkler system. The problem I have is that I have to run the pipe a distance of about 14' through the ceiling of my basement (drywalled). If I understand correctly, you're supposed to support a copper pipe every 4 feet or so on a straight run like that. Does anyone know how I can support this pipe without tearing up the drywall? I am running parallel to the joist.

    I tried to show the area I'm talking about. Unfortunately my light wasn't quite powerful enough to see clearly to the end. Can I use the existing supports or the ledge of the joist as support for my pipe?

    Thanks for any help you folks can give!
    -Dan

    Name:  photo.jpg
Views: 254
Size:  31.4 KB

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,198
    Blog Entries
    1

    Default

    Copper pipe can be supported every six feet.

    What ever it takes. To the side of the joist, or you can put supporting wood in there and lay on top of that. Or pick up some hangering material.
    Some plumbers used to put copper pipe sideways in a space like that and then solder the pipes to that.

  3. #3
    DIY Junior Member ash...housewares's Avatar
    Join Date
    Apr 2013
    Location
    Lincoln, NE
    Posts
    4

    Default

    If I use the ledge on the joist, does that count for support, or does it have to be attached to the joist every 6 feet? Alternatively, if I use supporting wood, does it have to be fastened to the wood somehow, or can it just rest on there?

  4. #4
    Test, Don't Guess! cacher_chick's Avatar
    Join Date
    Jan 2008
    Location
    Land of Cheese
    Posts
    3,142

    Default

    If it's not secured in place it is going to react to any type of water hammer, causing noise. Screwing it with clamps directly to the joists will transmit the noise of the flowing water into the wood and throughout the connected framing. It might be something you can live with, or it might be something that will annoy the heck out of you every time the water is running.
    Often it's best to bite the bullet and do it right the first time.

  5. #5
    DIY Junior Member ash...housewares's Avatar
    Join Date
    Apr 2013
    Location
    Lincoln, NE
    Posts
    4

    Default

    I think I can pull off fastening it, but in the event that I'm not able to, I won't be violating code if it's just resting on a wooden support, right?

  6. #6
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,390

    Default

    Not sure about that, but you will have a code violation unless you use the proper protection of a backflow valve to the sprinklers. In some places, this has to be tested and certified as actually still working on an annual basis.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  7. #7
    DIY Junior Member ash...housewares's Avatar
    Join Date
    Apr 2013
    Location
    Lincoln, NE
    Posts
    4

    Default

    This will be the water line that will feed into the backflow outside the house.

  8. #8
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,198
    Blog Entries
    1

    Default

    They make insulating clips that will nail onto the joist, yet allow for some noise dissipation.
    Or you can take foam pipe insulation and some plumbers strap, and either hang the pipe or lay it on wood.
    Attached Images Attached Images   

Similar Threads

  1. A question about copper pipe
    By jfd425 in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 1
    Last Post: 01-03-2013, 12:35 PM
  2. Copper pipe support under kitchen sink?
    By tiringer in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 5
    Last Post: 09-06-2010, 06:43 PM
  3. copper pipe support and thermal expansion
    By old_man in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 7
    Last Post: 04-28-2010, 07:38 AM
  4. Copper pipe question
    By djryval in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 5
    Last Post: 02-05-2008, 07:25 AM
  5. copper pipe question
    By Alexdc99 in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 4
    Last Post: 03-29-2005, 12:15 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •