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Topic: >> Public Water / Old Pump issues #113731
09/21/02 09:36 PM
09/21/02 09:36 PM
Admin  Offline
OP
Administrator
Member
Joined: Oct 2000
Posts: 3,482
NY, USA
Picture a situation where 'City Water' has been brought into a House (copper line) and the old Well piping disconnected, but the Ground Wire has not been moved from it's original location. What are the issues, what should be done and why?

[Linked Image]

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Re: Topic: >> Public Water / Old Pump issues #113732
09/21/02 10:38 PM
09/21/02 10:38 PM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
One suggestion — Although the wellhead seal looks decidedly nonmetallic, there may be one good reason for connections to both the casing and new municipally-connected feed—a metal well casing often makes an outstanding grounding electrode. The old 6-inch casing at my rural house measured <2&#8486; with a three-point test, and that is often considered “utility-substation grade.” {The equally-old ‘driven’ ¾-inch-pipe electrode was 65&#937;.}

Re: Topic: >> Public Water / Old Pump issues #113733
09/21/02 10:52 PM
09/21/02 10:52 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,890
NY, USA
Remember now that the interior metal water piping is no longer connected to this well piping. What problems/issues does that present?

Bill

Re: Topic: >> Public Water / Old Pump issues #113734
09/23/02 07:18 AM
09/23/02 07:18 AM
J
jdevlin  Offline
Member
Joined: Aug 2002
Posts: 402
welland ontario canada
Assuming there is no interconection between the old well head and the new city water a new bond needs to be added to the new water system.

Re: Topic: >> Public Water / Old Pump issues #113735
10/05/02 04:43 PM
10/05/02 04:43 PM
T
tdhorne  Offline
Member
Joined: Mar 2001
Posts: 345
Maryland, USA
I would add a new grounding electrode conductor (GEC)to the new water utility entry piping. I would leave the present GEC in place. This would bond both systems to the main bonding conductor.
--
Tom


Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison
Re: Topic: >> Public Water / Old Pump issues #113736
10/05/02 04:58 PM
10/05/02 04:58 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,890
NY, USA
Thanks,

What hazards, if any, exist with the way it is now? What would you tell the owner of this house?

Bill

Re: Topic: >> Public Water / Old Pump issues #113737
10/05/02 08:30 PM
10/05/02 08:30 PM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,344
that the interior plumbing may be able to be energized due to a rusty bond...

Re: Topic: >> Public Water / Old Pump issues #113738
10/07/02 05:40 AM
10/07/02 05:40 AM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,344
not as prevelant in this particular pix, the white powdery buidlup we sometimes see , similar to battery connections is explained by Mark Ode in an article Here


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