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Pipe junctions in enclosed space

  • 08-07-2016 1:56pm
    #1
    BunkMoreland
    Banned (with Prison Access) Posts: 820 ✭✭✭


    I'm remodeling a bathroom and will be re-routing some pipes, and planking off others. They will end up behind tiles with no access.

    What's the best thing to do here re possible leaks? Are compression fittings reliable enough or would soldering be better?

    I suppose running a new length of pipe in without any junctions would be best, not sure how feasible that would be.


Comments

  • #2
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    Never had a leak from a push-on fitting on qualplex. Compression fittings are OK as long as you use plenty of plumber mate and they are fitted right. Solder would be best tho on copper.

    I had a ceiling come down due to a compression fitting failing once so I stay away from them if possible.


  • #3
    DublinDilbert
    Registered Users, Registered Users 2 Posts: 5,401 ✭✭✭DublinDilbert


    BunkMoreland wrote: »
    I'm remodeling a bathroom and will be re-routing some pipes, and planking off others. They will end up behind tiles with no access.

    What's the best thing to do here re possible leaks? Are compression fittings reliable enough or would soldering be better?

    I suppose running a new length of pipe in without any junctions would be best, not sure how feasible that would be.

    Solder it if you can, or run a new length of pex with no joints. Also make sure the pipe isn't going to bind or rub of anything else such as a cement wall. Sleeve it in areas where its likely to rub if possible.


  • #4
    BunkMoreland
    Banned (with Prison Access) Posts: 820 ✭✭✭BunkMoreland


    Cut up some floor boards to have a look and will be easy enough run continuous lengths of qualpex. Will join to the existing copper with compression fittings near the hot tank which is accessible.

    Is it reasonable to run the pex straight beside joists then 90 degrees turn through the joists. The bend would have 16inches space so would be gradual enough.


  • #5
    BunkMoreland
    Banned (with Prison Access) Posts: 820 ✭✭✭BunkMoreland


    Two more questions,

    Does qualpex needs to be clipped onto the joists and kept straight or can it be feed loosely through? If loose with dips and crests will it lead to airlocks?

    Also could it be feed underfloor, up through behind a wall to change direction, then feed back down underfloor and up again to the sink, like it the picture attached. Will this lead to airlocks?


    Thanks.


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