Page 2 of 2 FirstFirst 12
Results 13 to 21 of 21
Plumbing & Plumbers Forum - PB versus Pex, something not quite right
Like Tree6Likes

PB versus Pex, something not quite right

Discuss PB versus Pex, something not quite right at UK Plumbers Forums; Originally Posted by windycol Cos copper doesnt come in 50metre coils at 28mm diameter that's why! Do what you like then! What do we know.?...
  1. #13
    Plumbers Arms member
    Chalked's Avatar
    Join Date
    Jan 2013
    Posts
    3,933
    Thanks
    89
    Thanked 467 Times in 455 Posts

    Default Re: PB versus Pex, something not quite right

    Quote Originally Posted by windycol View Post
    Cos copper doesnt come in 50metre coils at 28mm diameter that's why!
    Do what you like then! What do we know.?
    rpm and Riley like this.

  2. #14
    Member
    Join Date
    Mar 2008
    Posts
    518
    Thanks
    0
    Thanked 13 Times in 13 Posts

    Default Re: PB versus Pex, something not quite right

    I've been led to believe that plastic is ok for a return loop provided the system isn't running continuously , ie it's on a timer so it's only running at intermittent times.

  3. #15
    Member
    ShaunCorbs's Avatar
    Join Date
    May 2015
    Location
    North Wales (so hide all your sheep) :D
    Posts
    10,020
    Thanks
    148
    Thanked 703 Times in 692 Posts

    Default Re: PB versus Pex, something not quite right

    Quote Originally Posted by NickH View Post
    I've been led to believe that plastic is ok for a return loop provided the system isn't running continuously , ie it's on a timer so it's only running at intermittent times.
    No no only copper, q and e or mlcp
    IMPORTANT:
    Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal.

    Want gas safety or boiler repair advice? :
    Please supply your Gas Safe / Oftec / Hetas Number, DIYers, odd job people and have a go heroes need not apply, and remember any fuel burning appliance can kill


  4. #16
    Member
    Join Date
    Aug 2016
    Posts
    6
    Thanks
    0
    Thanked 1 Time in 1 Post

    Default Re: PB versus Pex, something not quite right

    Abandoned secondary return, now going with straight delivery. Mice shouldn't pose a problem as the pipes will be in a dedicated insulated structure buried in the ground /concrete floors of the main building. I have never experience mice damage on any of the electrics/pipework i have dealt with over the last 30 years. I would think there would be less likelyhood in the countryside than an urban environment as field mice tend to be smaller than the normal domestic variety and don't struggle to find natural foods etc. With older town properties having timber joist floors I could imagine this might be an issue. Rats might be more of an issue in urban areas as it has been found that you are never more than 5 metre from one!

    This barn conversion is a total rebuild internally with solid floors and modern fully insulated structures above with attention being given to voids and cavities. so not envisaging a problem!

  5. #17
    Member
    ShaunCorbs's Avatar
    Join Date
    May 2015
    Location
    North Wales (so hide all your sheep) :D
    Posts
    10,020
    Thanks
    148
    Thanked 703 Times in 692 Posts

    Default Re: PB versus Pex, something not quite right

    Depending on run / run off times of hot water you may need one
    IMPORTANT:
    Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal.

    Want gas safety or boiler repair advice? :
    Please supply your Gas Safe / Oftec / Hetas Number, DIYers, odd job people and have a go heroes need not apply, and remember any fuel burning appliance can kill


  6. #18
    Plumbers Arms member
    Riley's Avatar
    Join Date
    Jan 2013
    Location
    Sarf Coast
    Posts
    6,488
    Thanks
    677
    Thanked 393 Times in 387 Posts

    Default Re: PB versus Pex, something not quite right

    Thing is you've asked for help and gone with what you want anyway even when we're telling you from Our experience it's not a good idea, but you obviously know better
    IMPORTANT: Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal.


    GSR? Want gas safety or boiler repair advice? We will check out that you're genuine via the gas safe website, so please dont be offended when we ask for your details. DIYers, odd job people and have a go heroes need not apply.

  7. #19
    Member
    Join Date
    Aug 2016
    Posts
    6
    Thanks
    0
    Thanked 1 Time in 1 Post

    Default Re: PB versus Pex, something not quite right

    Sorry don't understand the point you are trying to make here, as because you have all advised that loop was not a good idea, i have reverted to a straight feed of the hot water to the bathrooms and not looping it back though for the life of me i cannot see that the effect on the pipework will be any greater in a direct feed than it would be in a controlled loop!

  8. #20
    Plumbers Arms member
    Riley's Avatar
    Join Date
    Jan 2013
    Location
    Sarf Coast
    Posts
    6,488
    Thanks
    677
    Thanked 393 Times in 387 Posts

    Default Re: PB versus Pex, something not quite right

    I was really making reference to the insistence on using plastic when you would be susceptible to wildlife. I have seen it loads of times in rural areas
    IMPORTANT: Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal.


    GSR? Want gas safety or boiler repair advice? We will check out that you're genuine via the gas safe website, so please dont be offended when we ask for your details. DIYers, odd job people and have a go heroes need not apply.

  9. #21
    Member
    ShaunCorbs's Avatar
    Join Date
    May 2015
    Location
    North Wales (so hide all your sheep) :D
    Posts
    10,020
    Thanks
    148
    Thanked 703 Times in 692 Posts

    Default Re: PB versus Pex, something not quite right

    Quote Originally Posted by windycol View Post
    Sorry don't understand the point you are trying to make here, as because you have all advised that loop was not a good idea, i have reverted to a straight feed of the hot water to the bathrooms and not looping it back though for the life of me i cannot see that the effect on the pipework will be any greater in a direct feed than it would be in a controlled loop!
    The reason we said no is the size doesn't need to be the same size as your main hot circuit

    And s lot once that length has cooled down you need to draw all the cold water off before you can get hot with a src this is minimal
    IMPORTANT:
    Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal.

    Want gas safety or boiler repair advice? :
    Please supply your Gas Safe / Oftec / Hetas Number, DIYers, odd job people and have a go heroes need not apply, and remember any fuel burning appliance can kill


Everybody loves a good deal: Deals and Discounts on Dozens of Powertools!
Everybody loves a good deal: Deals and Discounts on Dozens of Powertools!

Similar Threads

  1. Old fart versus new technology
    By mountainman in forum Gas Safe Register Forum - Public Forum
    Replies: 2
    Last Post: 18-10-2012, 08:50 PM
  2. Magnaclean versus TF1
    By mountainman in forum Central Heating Forum
    Replies: 28
    Last Post: 17-07-2012, 02:35 PM
  3. PTFE versus Loctite
    By antonm919 in forum Plumbing Forum
    Replies: 12
    Last Post: 24-04-2010, 10:14 AM
  4. Power shower versus TV
    By Plumbstar Tom in forum Bathrooms, Showers and Wetrooms
    Replies: 14
    Last Post: 11-03-2010, 05:10 PM

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!

Tags for this Thread


Try our Talk Electrician Forum and our popular Tilers Forums for more free advice from professional tradesmen.
Tens of thousands of tradesmen and over 2 million combined posts.


Plumbers Forums is a community-driven forum shared between all members.