GFCI Grounding; And Inside Double Gang Box? - Electrical - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Display Modes
Old 05-28-2011, 11:02 AM   #1
Join Date: May 2011
Posts: 2
Rewards Points: 10

GFCI & ground rod at pond; GFCI inside double gang box?

I am installing a weatherproof outlet at my pond which is 35 feet from my house. My house was built in 1948 and none of my household circuits are grounded. I will, of course, be installing a GFCI (15A to match circuit) at the pond. FIRST QUESTION: I was going to use an in-use double gang weatherproof box and put the GFCI in line with an additional outlet next to it, so that I would have four (protected) outlets for my pond pumps. I was just reading the instructions for installing the GFCI and it states to have no more than two wires, not counting the ground, inside the box. It shows a diagram of the GFCI in a single-gang box, and then the load line coming off and going to another single gang box. Is this true - can I not put a GFCI and an additional double outlet inside the same box (which would be 4 wires not counting grounds)? SECOND QUESTION: As I said before, my circuits are not grounded. I had planned on driving in a ground rod at the pond and connecting copper wire to the GFCI ground terminal, along with the ground wire from the 12/2 cable I'm running - and also tie into the other double outlet's ground. I read somewhere on a pond forum that one should not connect a ground rod to the GFCI. I have had conflicting info from "sperts" at local hardware stores - they say use a ground rod, but the online pond "sperts" say no. So I'm asking yet another expert to break the tie and hopefully set my mind to rest. I want this to be safe. FYI - This will not be a dedicated circuit - I am tapping into an existing 15A circuit that has very little load (ceiling lights, etc.) - this same circuit is from where I am currently using an extension cord for the pond pumps, and from which another line (romex underground) was in use for 30 years prior to becoming "compromised". (It was here when I moved in....) Thanks much for any help.


Last edited by Wildswalle; 05-28-2011 at 12:21 PM. Reason: change title to be closer to questions
Wildswalle is offline   Reply With Quote
Old 05-28-2011, 12:51 PM   #2
Licensed electrician
Join Date: Sep 2007
Location: Maryland
Posts: 10,805
Rewards Points: 1,764

Extending ungrounded circuits is not kosher. New wiring methods with a ground need to be installed.

You do not need a ground rod at the pond. Ground rods are for things like lightning strikes.


Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
Jim Port is online now   Reply With Quote
Old 05-28-2011, 01:17 PM   #3
Join Date: Jul 2008
Location: Canada (s/w ON.)
Posts: 2,294
Rewards Points: 1,000

I have a pond also! In my case I have a dedicated circuit (15 amp). Just before this circuit exits the house I have a GFCI and a switch mounted in a 2 gang box.
At the pond I have a standard duplex receptacle where I plug in the 1/2 HP circulating pump and my 10 watt fountain pump.
Wildie is offline   Reply With Quote
Old 05-28-2011, 02:11 PM   #4
Scared Electrician
Saturday Cowboy's Avatar
Join Date: Nov 2009
Location: Colorado
Posts: 715
Rewards Points: 500

2 points: romex is not allowed outside even in conduit. There is not reason why you can't put a GFI and a plug in a 2gang box w/ WP cover as planned.

The right way to do this would be to come from your panel with a new circuit. Either UF, or PVC and THWN.
Ragged Trousered Philanthropist

Please follow the code - its there for your safety no matter how inconvenient.
Saturday Cowboy is offline   Reply With Quote
Old 05-29-2011, 11:21 AM   #5
Join Date: May 2011
Posts: 2
Rewards Points: 10

GFCI and grounding

Thanks for all the replies - I appreciate the input. I am attempting to amend my initial plan. Upon investigating, I found an unused ground rod at the corner of my house, about 10 feet away from the switch in my laundry room that controls the electricity for my patio and pond areas. Would it be possible, or kosher, to tie in the ground rod to the line, at the switch, before the patio outlets and before it makes it's 35 foot trek out to the pond? Running a new line from the breaker box is not feasible at this time, and as stated before, my current household outlets are two-prong, un-grounded. I could also ground the line to the pipes in the laundry room if that is better than a ground rod? That's the grounding issue....

GFI issue: Currently, I was going to install a GFI at the pond. But, the patio outlets do not have GFI's, either. So now I am thinking of installing the GFI at the switch in my laundry room that would protect everything - patio and pond. Is this "kosher"?

It's a learning process. I want to be safe. Again, I appreciate the input.

Last edited by Wildswalle; 05-29-2011 at 12:03 PM. Reason: Added possiblilty of grounding to water pipes
Wildswalle is offline   Reply With Quote
Old 05-29-2011, 01:25 PM   #6
Lic Elect/Inspector/CPO
Join Date: Apr 2011
Location: NJ
Posts: 369
Rewards Points: 250

Do not try to a ground by connecting or installing a ground rod. Ground rod are not for that purpose.
As stated in a previous post run a circuit from the panel to the pond.


NJMarine is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
sub panel grounding bcarl Electrical 4 01-23-2011 10:37 PM
grounding of main panel and sub panel in older house linkysys Electrical 2 10-01-2009 04:34 PM
I need a code book - 680.43 jamiedolan Electrical 14 11-08-2008 01:21 PM
grounding switches in old work plastic two gang box wkend2 Electrical 3 03-05-2008 12:33 PM
Anyone want to take a shot at why #6 to attach antenna ground to breaker? Piedmont Electrical 44 01-08-2008 04:11 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1