1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Water Main Size?

Discussion in 'Plumbing and Central Heating' started by sturharv, 19 Feb 2008.

  1. sturharv

    sturharv

    Joined:
    4 Sep 2007
    Messages:
    219
    Thanks Received:
    0
    Location:
    Lancashire
    Country:
    United Kingdom
    Just some advice please, I have to arrange for the MDPE delivery for a project which has 4 no. townhouses each are 3 Bed with 1 bathroom (containing a bath, shower, whb and wc) and en-suite (containing a shower, whb and wc). I know the connection to the main water service pipe will be 25mm. but would you run 32mm alcathene from the boundary to each townhouse or would 25mm. dia. be adequate? the pressure is 4 Bar.

    Thanks :LOL:
     
  2. Sponsored Links
  3. Doctor Drivel

    Doctor Drivel

    Joined:
    8 Jul 2006
    Messages:
    1,079
    Thanks Received:
    0
    Location:
    London
    Country:
    United Kingdom
    Assuming a road with houses next to each other. 25mm will do at 4 bar. 32mm will do no harm as the slimes put 1/2" water meter in a 3/4" water pipe. Less resistance then.
     
  4. JPC

    JPC

    Joined:
    10 Aug 2004
    Messages:
    1,568
    Thanks Received:
    20
    Location:
    Leicester
    Country:
    United Kingdom
    sounds like NVQ level 3 question to me
     
  5. sturharv

    sturharv

    Joined:
    4 Sep 2007
    Messages:
    219
    Thanks Received:
    0
    Location:
    Lancashire
    Country:
    United Kingdom
    Oh dear, another one that would rather slate the question rather than try and give a reasonable answer, probably dosen't know the answer !



    PS Thanks, Doctor Drivel
     
  6. doitall

    doitall

    Joined:
    8 Jan 2005
    Messages:
    19,003
    Thanks Received:
    1,538
    Location:
    Bath
    Country:
    United Kingdom
    Well I don't know what sort of tin pot outfit you are, but if have to come on an DIY forum to ask stupid question, it doesn't bode well for the rest of the project.


    :rolleyes: :LOL: :rolleyes:
     
  7. doitall

    doitall

    Joined:
    8 Jan 2005
    Messages:
    19,003
    Thanks Received:
    1,538
    Location:
    Bath
    Country:
    United Kingdom
    Posted twice mod

    :confused:
     
  8. Sponsored Links
  9. pipe strangler

    pipe strangler

    Joined:
    16 Mar 2007
    Messages:
    6
    Thanks Received:
    0
    Country:
    United Kingdom
    DIA i have a large block of flats to plumb water to i was thinking of using 28mm hep to the boundary then reducing to 22 inside the building and branching off in 15 to each floor to 3 flats

    will this be ok :?:
     
  10. doitall

    doitall

    Joined:
    8 Jan 2005
    Messages:
    19,003
    Thanks Received:
    1,538
    Location:
    Bath
    Country:
    United Kingdom
    Whatever turns you on :LOL: go for it. :LOL:
     
  11. sturharv

    sturharv

    Joined:
    4 Sep 2007
    Messages:
    219
    Thanks Received:
    0
    Location:
    Lancashire
    Country:
    United Kingdom
    Why don't you answer the question then DIA?
    Worried what people may think.... or don't you know? :rolleyes: :rolleyes: :oops: :oops:
     
  12. doitall

    doitall

    Joined:
    8 Jan 2005
    Messages:
    19,003
    Thanks Received:
    1,538
    Location:
    Bath
    Country:
    United Kingdom
    Because either the poster is as thick as two short planks or it's a wind up.

    Next question. :LOL:
     
  13. sturharv

    sturharv

    Joined:
    4 Sep 2007
    Messages:
    219
    Thanks Received:
    0
    Location:
    Lancashire
    Country:
    United Kingdom
    Fair enough. It does sound like a wind up!
     
  14. Agile

    Agile

    Joined:
    26 Jun 2004
    Messages:
    64,020
    Thanks Received:
    4,591
    Location:
    London
    Country:
    United Kingdom
    No! Hep is not normally used for water supplies outside the building.

    You need blue poly and its normal to split the supply to 20 mm poly OUTSIDE so that water meters can be added individually if required later.

    Do you hold the Water Regulations qualification?

    If not the Water Supplier will need to send their Inspector to check the installation.

    Tony
     
  15. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page