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Stuart September 5th 04 12:10 AM

Detecting Undeground Water Leak
 
I have been advised by Scottish Water that they have detected a leak in
the mains supply feeding the flats I live in..They say it is after their
stop tap and is ,therefore ,the responsibility of the owners ..The supply
pipe is below cement and or tarmac.
Does anyone know if plumbers have sonar type equipment that can pick up
suck leaks to identify where the leak is to avoid costly investigative
digging ...Scottish Water suggested that some plumbers would have this
equipment .
Stuart

--

"YESTERDAY is history,TOMORROW is a mystery,TODAY is a gift

That is why it is called the present "

Mike Hibbert September 5th 04 08:02 AM

"Stuart" wrote in message
...
I have been advised by Scottish Water that they have detected a leak in
the mains supply feeding the flats I live in..They say it is after their
stop tap and is ,therefore ,the responsibility of the owners ..The supply
pipe is below cement and or tarmac.
Does anyone know if plumbers have sonar type equipment that can pick up
suck leaks to identify where the leak is to avoid costly investigative
digging ...Scottish Water suggested that some plumbers would have this
equipment .
Stuart

--


I had a leak like this and Severn Trent Water sent a guy out with a
"listening rod" (essentially a long big of metal rod) that he put on the
floor and listened to. He pinpointed it to within 2 feet. When we dug, he
was fairly accurate.

How old are the flats? It's possible that the leak is in some old lead pipe,
if thats the case, Scottish Water may subsidise relaying it in plastice as
there is a drive to cut down on lead and leaks. I had mine done and it was a
15 meter run from the boundary and the house, it cost £500 all in.

Are you sure the leak is not where the mains joins the actual building?

Mike




N. Thornton September 5th 04 10:45 AM

Stuart wrote in message . ..
I have been advised by Scottish Water that they have detected a leak in
the mains supply feeding the flats I live in..They say it is after their
stop tap and is ,therefore ,the responsibility of the owners ..The supply
pipe is below cement and or tarmac.
Does anyone know if plumbers have sonar type equipment that can pick up
suck leaks to identify where the leak is to avoid costly investigative
digging ...Scottish Water suggested that some plumbers would have this
equipment .
Stuart


ask them???

Tony Williams September 5th 04 12:18 PM

In article ,
Stuart wrote:
I have been advised by Scottish Water that they have detected a
leak in the mains supply feeding the flats I live in..They say it
is after their stop tap and is ,therefore ,the responsibility of
the owners ..


We live on a clay soil, and a leak in a pipe can
get channelled sideways for quite a distance before
it becomes audible.

A Severn Trent man (with stick-and-cup) declared that
he could hear a water leak on our drive, after their
stop tap. His Absolute Declaration was proved wrong
when closing the stop tap did not send the noise away.

In spite of being bloody well told that their 4"
asbestos main was on the other side of the lane, they
still insisted on starting the JCB on our drive (where
'The Man' had put his yellow cross), only to dig their
way all across the lane, to the leaking 4" asbestos main.

--
Tony Williams.

Stuart September 5th 04 12:21 PM

On 5 Sep 2004 02:45:44 -0700, (N. Thornton) wrote:

Stuart wrote in message . ..
I have been advised by Scottish Water that they have detected a leak in
the mains supply feeding the flats I live in..They say it is after their
stop tap and is ,therefore ,the responsibility of the owners ..The supply
pipe is below cement and or tarmac.
Does anyone know if plumbers have sonar type equipment that can pick up
suck leaks to identify where the leak is to avoid costly investigative
digging ...Scottish Water suggested that some plumbers would have this
equipment .
Stuart


ask them???


Yawwwwwwwwwwwwwwwwwwwwwwwwwwwwn !!!!!!!
S

--

"YESTERDAY is history,TOMORROW is a mystery,TODAY is a gift

That is why it is called the present "

dg September 5th 04 01:05 PM

Stuart wrote in message . ..
I have been advised by Scottish Water that they have detected a leak in
the mains supply feeding the flats I live in..They say it is after their
stop tap and is ,therefore ,the responsibility of the owners ..The supply
pipe is below cement and or tarmac.
Does anyone know if plumbers have sonar type equipment that can pick up
suck leaks to identify where the leak is to avoid costly investigative
digging ...Scottish Water suggested that some plumbers would have this
equipment .
Stuart


Why isn't the landlord or service agent dealing with this?

Yes equipment does exist, but there is no guarantee that the company
with the equiment will be any cheaper than one without it.

A few quotations to remedy the problem ( and make good) is the only
answer.

Have you seen Scottish Waters' report to confirm that a leak exists,
they may be mistaken. And how much would SW charge to rectify?

dg

Stuart September 5th 04 01:16 PM

On 5 Sep 2004 05:05:38 -0700, (dg) wrote:

Stuart wrote in message . ..
I have been advised by Scottish Water that they have detected a leak in
the mains supply feeding the flats I live in..They say it is after their
stop tap and is ,therefore ,the responsibility of the owners ..The supply
pipe is below cement and or tarmac.
Does anyone know if plumbers have sonar type equipment that can pick up
suck leaks to identify where the leak is to avoid costly investigative
digging ...Scottish Water suggested that some plumbers would have this
equipment .
Stuart


Why isn't the landlord or service agent dealing with this?


Well they are ,sort of. I advised them of the problem but they took the
pessimistic route saying there could be considerable costs involved ..What
they seemed to be saying was that it would be a case of digging at one end
and keeping digging until the leajk was found .I was trying to suggest to
them ways of locating the likley area of the leak before starting digging
....

Yes equipment does exist, but there is no guarantee that the company
with the equiment will be any cheaper than one without it.


But surely if the likely area of the leak can be found then thats where to
start digging and therefore costs should be less..?

A few quotations to remedy the problem ( and make good) is the only
answer.

The factor suggested that quotes would not be able to be obtained as
companies would not give one as they would not know the cost involved
until they started the work ( and presumably completed it as well)

Have you seen Scottish Waters' report to confirm that a leak exists,
they may be mistaken.


It was a SW Inspector who came out to see me but turned up a day early
when I wasn't up..I would think he just used some form of rod or
stethoscope type thingy ...

And how much would SW charge to rectify?


What...a utility company to do this ...:-)...can't imagine they would be
exactly cheap assuming that they would do it in the first place ..

Stuart ...

dg



--

"YESTERDAY is history,TOMORROW is a mystery,TODAY is a gift

That is why it is called the present "

mich September 5th 04 01:23 PM


"Mike Hibbert" wrote in message
...
"Stuart" wrote in message
...


Does anyone know if plumbers have sonar type equipment that can pick up
suck leaks to identify where the leak is to avoid costly investigative
digging ...Scottish Water suggested that some plumbers would have this
equipment .
Stuart

--


I had a leak like this and Severn Trent Water sent a guy out with a
"listening rod" (essentially a long big of metal rod) that he put on the
floor and listened to. He pinpointed it to within 2 feet. When we dug, he
was fairly accurate.


I had a problem like this with South West Water. In fact its just been
sorted - not by SWW and its a saga and a half!

None of the plumbers who came here had sonar equipment. They all had a long
wooden pole.

Similarly they were all fairly accurate in locating said leak ( even if
brent were not so good at digging on X marks the spot and finding it!)

My hubby located a leak under concrete putting his ear to the end of the
stale of a pike. he also located the service pipe underground by divining
for it with a couple of rods. It does work.





chris French September 6th 04 12:48 AM

In message , Stuart
writes
On 5 Sep 2004 05:05:38 -0700, (dg) wrote:

Stuart wrote in message
...
I have been advised by Scottish Water that they have detected a leak in
the mains supply feeding the flats I live in

snip

And how much would SW charge to rectify?


What...a utility company to do this ...:-)...can't imagine they would be
exactly cheap assuming that they would do it in the first place ..

Yorkshire Water will fix leaks in domestic supply pipes for free
--
Chris French, Leeds

Andrew Gabriel September 6th 04 01:36 AM

In article ,
chris French writes:

Yorkshire Water will fix leaks in domestic supply pipes for free


I thought Prescott got all the water companies to agree to that
as part of the initiative to reduce water loss via leaks?


--
Andrew Gabriel

Owain September 6th 04 09:51 AM

"Andrew Gabriel" wrote
| chris French writes:
| Yorkshire Water will fix leaks in domestic supply pipes for free
| I thought Prescott got all the water companies to agree to that
| as part of the initiative to reduce water loss via leaks?

Scottish Water unfortunately are not a water company accountable to
shareholders and public pressure; they are a public sector body who charge
more for water than private sector companies in England.

Owain



Pete C September 6th 04 10:04 AM

On Sun, 05 Sep 2004 13:16:41 +0100, Stuart
wrote:

On 5 Sep 2004 05:05:38 -0700, (dg) wrote:

Stuart wrote in message . ..
I have been advised by Scottish Water that they have detected a leak in
the mains supply feeding the flats I live in..They say it is after their
stop tap and is ,therefore ,the responsibility of the owners ..The supply
pipe is below cement and or tarmac.
Does anyone know if plumbers have sonar type equipment that can pick up
suck leaks to identify where the leak is to avoid costly investigative
digging ...Scottish Water suggested that some plumbers would have this
equipment .
Stuart


Why isn't the landlord or service agent dealing with this?


Well they are ,sort of. I advised them of the problem but they took the
pessimistic route saying there could be considerable costs involved ..What
they seemed to be saying was that it would be a case of digging at one end
and keeping digging until the leajk was found .I was trying to suggest to
them ways of locating the likley area of the leak before starting digging


Hi,

What you need is a company with a leak noise correlator:

http://www.google.com/search?hl=en&lr=lang_en&ie=UTF-8&q=site%3A.uk+%22leak+noise%22

This will give the distance of the leak between two points in the
pipework, then an acoustic sounder can be used on the ground above to
help pinpoint the location of the pipe.

cheers,
Pete.


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