DIYnot
Local | Network
   DIYnot > Forums
Local | Network
DIYnot Network Local DIYnot Network Local  
  Forum IndexForum Index     RulesRules    HelpHelp     Join FREERegister Free     About CookiesCookies     SearchSearch     LoginLogin 

Connecting to lead supply pipe

Goto page 1, 2, 3  Next
 
Post new topic   Reply to topic    DIYnot.com Forum Index > Plumbing and Central Heating
Search this topic :: View previous topic :: View next topic  
Author Message
danr86

from United Kingdom

Joined: 28 Mar 2011
Posts: 95
Location: London,
United Kingdom
Thanked: 1 time

PostPosted: Thu Mar 29, 2012 11:03 am Reply with quote

Hi, I've got a leaking / not working internal stop cock which I need to replace. The pipework between the internal stop cock and the street stop cock is lead and I don't fancy digging a trench etc and paying Thames Water to connect new plastic pipework. The pipework from the internal stop cock internally is copper.

Can I cut the old lead pipe close to the stop cock and connect one of these lead to MDPE couplers? http://www.toolstation.com/shop/p74879 Then connect 25mm pipe through the sub floor void in the hallway and then below the new screed that will be put down in the kitchen and then connect a new internal stop cock in the kitchen?

Also, does the MDPE in the floor void need to be lagged / insulated / boxed in something?And how should I run the MDPE under the screed - in the insulation or chase out the screed afterwards?

Thanks in advance.
Back to top
 Alert Moderators

If you do not want to see this advert, click here to login or if you are new click here to join free.
dcawkwell

from United Kingdom

Joined: 02 Nov 2010
Posts: 3320
Location: Humberside,
United Kingdom
Thanked: 499 times

PostPosted: Thu Mar 29, 2012 11:26 am Reply with quote

You need a lead loc.
The plumbers merchant will know what you mean.
You may also need to file down the lead pipe to get
it to fit into it as lead varies quite a bit.
They come in different sizes and will allow you to connect straight
onto a 15 or 22mm copper pipe. From there you can connect a stop valve.
Back to top
 Alert Moderators
danr86

from United Kingdom

Joined: 28 Mar 2011
Posts: 95
Location: London,
United Kingdom
Thanked: 1 time

PostPosted: Thu Mar 29, 2012 12:40 pm Reply with quote

This may be a stupid question but what's the difference between a lead loc and the lead to mdpe coupler in the link?
Also why would you go for copper rather than MDPE?
There's quite a long run (around 9m) from where the current stopcock is in the hallway (under the floor) to where I want to put it in the kitchen.
Should I keep it where it is even though it's not accessible unless I pick up the flooring or move it to the kitchen?

Thanks
Back to top
 Alert Moderators
dcawkwell

from United Kingdom

Joined: 02 Nov 2010
Posts: 3320
Location: Humberside,
United Kingdom
Thanked: 499 times

PostPosted: Thu Mar 29, 2012 12:51 pm Reply with quote

danr86 wrote:
This may be a stupid question but what's the difference between a lead loc and the lead to mdpe coupler in the link?
Also why would you go for copper rather than MDPE?
There's quite a long run (around 9m) from where the current stopcock is in the hallway (under the floor) to where I want to put it in the kitchen.
Should I keep it where it is even though it's not accessible unless I pick up the flooring or move it to the kitchen?

Thanks


You can do that if you wish but I would like a stop cock at the boundary where the water is entering the house so I can cut the house off completely.
Back to top
 Alert Moderators
danr86

from United Kingdom

Joined: 28 Mar 2011
Posts: 95
Location: London,
United Kingdom
Thanked: 1 time

PostPosted: Thu Mar 29, 2012 12:54 pm Reply with quote

dcawkwell wrote:


You can do that if you wish but I would like a stop cock at the boundary where the water is entering the house so I can cut the house off completely.


So are you saying Thames Water stop cock, then internal stop cock under the floor by the door way, then another stop cock in the kitchen or just forget about the kitchen stop cock?
Back to top
 Alert Moderators
dcawkwell

from United Kingdom

Joined: 02 Nov 2010
Posts: 3320
Location: Humberside,
United Kingdom
Thanked: 499 times

PostPosted: Thu Mar 29, 2012 2:18 pm Reply with quote

danr86 wrote:
dcawkwell wrote:


You can do that if you wish but I would like a stop cock at the boundary where the water is entering the house so I can cut the house off completely.


So are you saying Thames Water stop cock, then internal stop cock under the floor by the door way, then another stop cock in the kitchen or just forget about the kitchen stop cock?


Yes I would certainly put a stop cock where it comes into the house.
I would make it accessible somehow. The you are free to do service valves or stop cocks in the rest of the house.
I would just feel safer knowing I can stop the water into the house right
at point of entry.
Back to top
 Alert Moderators
Agile

from United Kingdom

Joined: 26 Jun 2004
Posts: 51938
Location: London,
United Kingdom
Thanked: 3225 times

PostPosted: Thu Mar 29, 2012 6:40 pm Reply with quote

Pipe under floor has to be insulated.

You cannot bury mains pipe in concrete. It has to be accessible but a flexible pipe can be fitted in a tube duct so it can be pulled out.

Tony
Back to top
The following user says thank you to Agile for this useful post:
danr86 (29 Mar 2012)
 Alert Moderators
danr86

from United Kingdom

Joined: 28 Mar 2011
Posts: 95
Location: London,
United Kingdom
Thanked: 1 time

PostPosted: Thu Mar 29, 2012 8:29 pm Reply with quote

What do you recommend insulating it with? Would this be suitable or should I be looking for something else?

http://www.ebay.co.uk/itm/28mm-Pipe-Insulation-Armaflex-32mm-Thick-x-2m-Pipe-L440-/200579244310?pt=UK_Home_Garden_Hearing_Cooling_Air&hash=item2eb3746116#ht_2754wt_698

Thanks
Back to top
 Alert Moderators
doitall

from United Kingdom

Joined: 08 Jan 2005
Posts: 18657
Location: Bath,
United Kingdom
Thanked: 1483 times

PostPosted: Thu Mar 29, 2012 8:32 pm Reply with quote

Philmac universal coupler is the best fitting for what you want.
Back to top
The following user says thank you to doitall for this useful post:
dcawkwell (29 Mar 2012)
 Alert Moderators
DeltaT2

from United Kingdom

Joined: 24 Aug 2011
Posts: 1401
Location: Glasgow,
United Kingdom
Thanked: 165 times

PostPosted: Fri Mar 30, 2012 9:07 am Reply with quote

Get a Real Plumber in & he'll wipe a lead ball joint on it in minutes....................... icon_wink.gif
Back to top
 Alert Moderators
doitall

from United Kingdom

Joined: 08 Jan 2005
Posts: 18657
Location: Bath,
United Kingdom
Thanked: 1483 times

PostPosted: Fri Mar 30, 2012 9:23 am Reply with quote

DeltaT2 wrote:
Get a Real Plumber in & he'll wipe a lead ball joint on it in minutes....................... icon_wink.gif


Not allowed to. icon_mrgreen.gif
Back to top
 Alert Moderators
Agile

from United Kingdom

Joined: 26 Jun 2004
Posts: 51938
Location: London,
United Kingdom
Thanked: 3225 times

PostPosted: Fri Mar 30, 2012 9:32 am Reply with quote

DeltaT2 wrote:
Get a Real Plumber in & he'll wipe a lead ball joint on it in minutes....................... icon_wink.gif


I thought you would have known thats no longer allowed!
Back to top
 Alert Moderators
tim00

from United Kingdom

Joined: 30 Jun 2004
Posts: 661
Location: United Kingdom
Thanked: 57 times

PostPosted: Fri Mar 30, 2012 10:14 am Reply with quote

As the answers above indicate, manipulating, or even working with in-situ lead service pipe is nowadays a contentious issue.
Some Utilities will insist that the lead is replaced if their attention is drawn to it or before they will make any connections at the external stop-tap.

AAMOI: when i was young, i was taught to use "Bobbins" to bend thin wall 3" and 4" closet bends - a waste of time, i never had occasion to use. Lead wiping is going the same way.
Back to top
 Alert Moderators
Charnwood

from United Kingdom

Joined: 29 Apr 2011
Posts: 3579
Location: United Kingdom
Thanked: 510 times

PostPosted: Fri Mar 30, 2012 12:08 pm Reply with quote

danr86 wrote:
This may be a stupid question but what's the difference between a lead loc and the lead to mdpe coupler in the link?

Lead-Locs are made by Melimatic, a UK company. The one in your link will possibly be made in Eastern Europe or the Far East.

The word 'leadloc(k)' is now used as a generic term, like ballofix and hoover.
Back to top
 Alert Moderators
DeltaT2

from United Kingdom

Joined: 24 Aug 2011
Posts: 1401
Location: Glasgow,
United Kingdom
Thanked: 165 times

PostPosted: Fri Mar 30, 2012 1:03 pm Reply with quote

Agile wrote:
DeltaT2 wrote:
Get a Real Plumber in & he'll wipe a lead ball joint on it in minutes....................... icon_wink.gif


I thought you would have known thats no longer allowed!


Ach, it's plainly daft how you can't connect a lead pipe with a wiped joint & I've not seen any Water Byelaws Polis around for ages!!

Our Artisans always carry a bar of solder, just incase we have a lead pipe problem. Saves hours running to a Plumbers' Merchants & trying to get the right size of LeadLoc. Also, these days you can be further delayed by Qs at filling stations, caused by the brain dead morons panic buying fuel............. icon_lol.gif icon_lol.gif

There's never a problem getting the red derv we run our vans on??!!!............. icon_lol.gif icon_lol.gif icon_twisted.gif
Back to top
 Alert Moderators
Search this topic :: View previous topic :: View next topic  
Post new topic   Reply to topic    DIYnot.com Forum Index > Plumbing and Central Heating All times are GMT
Goto page 1, 2, 3  Next
Page 1 of 3

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Similar Topics   Replies   Views   Posted 
Connecting to 1 1/2" lead waste pipe 17 300 Thu Aug 02, 2012 5:03 pm
Connecting new WC waste pipe to existing Lead 4 960 Wed Feb 08, 2006 7:05 pm
Connecting old lead mains to new 25mm blue pipe 7 4520 Mon Oct 08, 2007 8:34 am
Connecting basin to old lead waste pipe 11 400 Tue Feb 08, 2011 4:35 pm
Connecting to Stop Cock in lead incoming pipes 4 1080 Mon Oct 02, 2006 6:24 pm


 
DIYnot
Find an Expert | Find a Supplier | Search DIYnot.com
Network | Advertising | Newsletter
DIY | DIY How To | @home | DIY Wiki | DIY Forum
By using this site you agree to our Terms of Service / Disclaimer.
Please read our Privacy Policy. Copyright © 2000-2014 DIYnot Limited.