15 mm water pipes - which make/model?

Discussion in 'Plumbers' Talk' started by Possom, Jul 7, 2017.

  1. Possom

    Possom Member

    On another thread it was stated that solvent weld pipes are the way to go, with regards to 40 mm waste pipes, instead of push fit. I was therefore wondering what your thoughts were with respect to 15 mm pipes required to bring water to a bathroom basin, toilet, bath, and over-bath shower.

    I noticed five varieties for sale (links below), with the last three being push-fit. Thanks!

    JG Speedfit BPEX Barrier Coil Pipe
    http://www.screwfix.com/p/jg-speedfit-bpex-barrier-coil-pipe-25m-x-15mm/11027

    JG Speedfit Polybutylene Pipe
    http://www.screwfix.com/p/jg-speedfit-polybutylene-pipe-15mm-x-25m/36617

    HEP20 Polybutylene Barrier Pipe
    http://www.screwfix.com/p/hep2o-polybutylene-barrier-pipe-coil-15mm-x-10m/1615j#product_additional_details_container

    HEP20 HXX25/15W Barrier Coil Pipe
    http://www.screwfix.com/p/hep2o-hxx25-15w-barrier-coil-pipe-15mm-x-25m/4791f

    Floplast PE-X Barrier Pipe

    http://www.screwfix.com/p/floplast-pe-x-barrier-pipe-15mm-x-25m-white/54479
     
  2. [​IMG]The best way to go.
     
    Joe95, teabreak, Possom and 1 other person like this.
  3. nigel willson

    nigel willson Screwfix Select

    I second that!!!!
     
    Possom likes this.
  4. KIAB

    KIAB Super Member

    3rd it.:D
     
    Possom likes this.
  5. Possom

    Possom Member

    Oh, okay. I had thought that the flexi pipes were what was used nowadays, but presumably it has issues in relation to traditional copper.

    If using copper, I presume all joints/bends are soldered together (as opposed to some other modern joint which I'm not aware of)?
     
  6. Ideally you should use enfeed or yorkshire fittings and soldering the joints which by far is the best method.
    If you have access to a pipe bender you can also pull your bends and offsets.
    There are fittings now called Tectite which although I have seen them I have never used them as I would always solder with enfeed.
    http://www.screwfix.com/search?search=tectite#_=p
     
    Possom likes this.
  7. Move with the times guys! I bet the old lead boys thought copper was summat and nowt and sweating lead were the best. It's an alternative and has a place, just like copper does, and it's called Speed fit for a reason!
     
    DannyDoLittle likes this.
  8. KIAB

    KIAB Super Member

    Old school here, like my copper & solder joints.:)
     
    teabreak likes this.
  9. I agree, you can't beat it. But in this high speed, modern world in which I seem to be living, it can be slow and very disruptive (compared to "cabling" plastic through floor joists). Still, I'll be retiring soon. Hopefully!
     
  10. teabreak

    teabreak Screwfix Select

    Plastic is Lego plumbing!
     
    KIAB likes this.
  11. Possom

    Possom Member

    Out of curiosity, what do you guys not like about the plastic coil piping? Is it more likely to develop problems over the long term?
     
  12. KIAB

    KIAB Super Member

    upload_2017-7-7_21-24-19.gif
     
  13. teabreak

    teabreak Screwfix Select

    Looks horrible, bulky fittings, prone to rodent damage, differing makes are not fully interchangable, sunlight may cause damage and you are relying on a single O ring on a perfectly smooth pipe to seal it, to name a few ;)
     
  14. KIAB

    KIAB Super Member

    And bad installation by plumbers!:eek:

    A couple of years ago, a friend called me in the early hours,(only peep she could think of) central heating leaking,she had only been in house about a month, popped over, plastic pipe had come apart on a fitting.
    And the reason why, pipe clip spacing,about 5' between clips,heating came on, plastic pipe sagged pulling fitting apart, also you can't rule out a poorly connected fitting.:mad:
     
    Possom likes this.
  15. Possom

    Possom Member

    What should the distance, or max distance, be between clips on horizontal piping if professionally installed? I might just check already installed plumbing, with regards to clip spacing, if I get a chance.
     
  16. KIAB

    KIAB Super Member

    And another stupid thing with Hep2o pipe, you can use compression fittings by wrapping pipe with ptfe first, doesen't inspire me confidence.
     
  17. KIAB

    KIAB Super Member

    Not sure, will have a look when I get home.

    Have a look at this Speedfit linky: https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0ahUKEwjqobrhifjUAhWsJ8AKHQReB-sQFggrMAI&url=http://help.tradingdepot.co.uk/wp-content/uploads/2013/04/speedfit-installing-pipework.pdf&usg=AFQjCNE0ToUdjuI3B3xrW0W-JtLgcyCX3Q&cad=rja
     
    Possom likes this.
  18. Phil the Paver

    Phil the Paver Screwfix Select

    Most new builds are pretty much all plastic pipe now, only using copper on rad tails and maybe at the tap connections.
     
  19. Possom

    Possom Member

    KIAB likes this.
  20. Possom

    Possom Member

    I've just thought of a couple of other questions:

    a) If installing *vertical* 15mm copper piping within a partition wall from ceiling to floor, I presume clips should be attached to attach it to the timber frame as per plastic piping? If so, are regular plastic clips used as for plastic piping, or special clips for copper piping?

    b) If installing 15 mm copper piping throughout the bathroom, and this is then brought immediately outside the bathroom to be connected up to the rest of the household plumbing system (which is 15mm *plastic* piping), how is the copper connected to the plastic?

    Thanks!
     

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