Pool Bonding @ Elevated Slab

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ed downey

ed downey

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Missouri
I have a project that is a residential highrise with a small swimming pool on the roof. The drawings call for 1'-6" thick structural walls and a 1'-0" thick structural floor (pool bottom) for the pool area. then inside these structural walls and floor a pool installer will install 8" thick walls and floor with rebar bonded to one location.

The local AHJ is requiring that from the rebar in the 8" thick wall (by the pool installer) we need to bond every 5' around the perimeter of the pool to the structural floor slab. This entails chipping concrete at a distance of 5 feet from the edge of the pool until we find rebar an then attaching to that rebar every 5 feet of length.

Since I do not deal with pools very often I was wondering if this interpretation of bonding everything within 5 feet of the edge of the pool seems logical or a little overboard (I think it is a little overboard).

Thanks,
Ed
 
Ed, ask the inspector to cite a code reference. There is no requirement to bond every 25 square feet of a pool to a point. 680.26(C)(1) permits the usual steel tie wires to connect the rebar together electrically for the equipotential bonding grid.

If the floor is seperate from the walls, then the two sections would need to be bonded together per this section. That would entail 1 conductor if that were the case.
 
georgestolz said:
Ed, ask the inspector to cite a code reference. There is no requirement to bond every 25 square feet of a pool to a point. 680.26(C)(1) permits the usual steel tie wires to connect the rebar together electrically for the equipotential bonding grid.

If the floor is seperate from the walls, then the two sections would need to be bonded together per this section. That would entail 1 conductor if that were the case.
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Not to step on toes or anything, but maybe the AHJ is making this happen because he doesn't know if all the rebar in the walls is connected to each other? As in, there was no inspection for this installation.

Tom

IMO he is going overboard.
 
LOL I'm guessing a bunch:rolleyes:

I thought the OP was stating that he had to chip into the concrete(existing) every 5 feet along the wall length to bond the rebar. I guess I misread.;)


Tom

P.S. Steel Toes aren't enough.:grin:
 
Thanks, George and Tom.

Tom, This is new constructuction but the structural was poured previously and inspected by another inspector so the pool inspector is stating that he cannot be sure that all the rebar is tied together therefore we need to chip away the structural concrete to get at the rebar to bond to every 5'. Seems a little overboard to me though.

-Ed
 
That's what I thought you were saying. I think he has some claim to what he is requiring but in essence the GC/Homeowner is responsible if the EC was not notified of the original pour. IMO of course.


Tom:)
 
In this case, I would not blame the inspector for being cautious...with pools it is better to err on the side of caution.

When I come on a project that may have been started by another inspector, somtimes I accept pictures or prints that clearly show what is necessary to be proved. Maybe this inspector may approve of that type of method, ask him.

George
How many of these types of pools have you installed? I notice from some of your pictures, you seem to live in a rural area... ;)
 
Pierre C Belarge said:
George
How many of these types of pools have you installed? I notice from some of your pictures, you seem to live in a rural area... ;)
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Pierre, you've got to remember how sneaky I am.

Click and drag on my post above, next to the smiley, and you'll see the answer. :D
 
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