Swimming pool bonding

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steve66

steve66

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Illinois
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Engineer
For a swimming pool, there is supposed to be an intentional bond in contact with the pool water.

680.26(C) (2011):
Code: 
An intentional bond of a minimum conductive surface area of 9 square inches shall be installed in contact with teh pool water.  This bond shall be permitted to consist of parts that are required to be bonded in 680.26(B).

Normally metal ladders and other metal items in the pool would satisfy this requirment.

If I don't have any of these metal items in the pool, does concrete meet the requirement of being a "conductive surface"?? (The concrete will have either bonded rebar or a copper conductor grid installed in it.)

If not, the handbook says that there are devices that are specifically listed for this purpose. Does anyone know who makes them or what they are called?
 
steve66 said:
For a swimming pool, there is supposed to be an intentional bond in contact with the pool water.

680.26(C) (2011):
Code: 
An intentional bond of a minimum conductive surface area of 9 square inches shall be installed in contact with teh pool water.  This bond shall be permitted to consist of parts that are required to be bonded in 680.26(B).

Normally metal ladders and other metal items in the pool would satisfy this requirment.

If I don't have any of these metal items in the pool, does concrete meet the requirement of being a "conductive surface"?? (The concrete will have either bonded rebar or a copper conductor grid installed in it.)

If not, the handbook says that there are devices that are specifically listed for this purpose. Does anyone know who makes them or what they are called?
Click to expand...

See 680.26(B)(1). A concrete pool does not require the special fitting. A vinyl pool would however.
 
If the pool shell is not conductive there are other methods to bond the water. Here is a device that connects into the water line.

zincAndodeGlueIn.jpg
 
Great answers!!

texie said:
See 680.26(B)(1). A concrete pool does not require the special fitting. A vinyl pool would however.
Click to expand...

I think you are right. The concrete and ground grid should comply.

But if I ever need the "intentional bond", now I'll know where to find one.
 
Some skimmers also have metal in them to perform this function. Check to see if it is in there, as you may want to tie it to the ground grid whether you have to or not.
 
I just found out the concrete will probably be coated with epoxy.

Looks like i'm need some type of intentional ground after all.

Dennis: Can you tell me who makes that device you posted?
 
DTLight said:
If the pool light niche is metal, possibly that would count for an in ground pool.
Click to expand...

That would be my view as well. If by chance it is a newer type of light that does not qualify, I'd use the Burndy device. In some areas you might find Hayward or some of the others easier to get off the shelf.
 
steve66 said:
I just found out the concrete will probably be coated with epoxy.

Looks like i'm need some type of intentional ground after all.

Dennis: Can you tell me who makes that device you posted?
Click to expand...

Here is where I saw it but it is $160 http://commercialpool.com/search.aspx?find=zinc+anode+glue+in

There is also thisBond Safe 680

I have also seen a short piece of copper pipe inserted in the line with a pipe clamp but I am not sure if that is compliant since the water may not be there when the pump is off.
 
After looking at that Bond Safe 680 I would think that pool equipment manufacturers would start install something like that at the factory. I could see where drilling a hole in the equipment could void the warranty.
 
There aren't any niche lights. I'm not even sure there is a skimmer.

This is actually a pool for penguins, not people. But it still falls under the requirements of 680.

Steve
 
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