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Thread: Where to buy a pool bonding grid?

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    Where to buy a pool bonding grid?

    Hello all, I'm sorry if this is in the wrong section. I put up my pool last year, according to, at the time the towns requirements, it included bonding using 8 gauge bare copper around the pool, and I mounted it in 6 spots. Long story I passed final inspection last year, or so I thought. Got a notice last week saying my permit was still open and they required an inspection. Inspector came out today and said I need to bond the water and that I needed a bonding grid.

    So for bonding the water, I'll probably just go with the Bond safe 680 skimmer plate, but where do I get a copper grid? Do I make my own? Can anyone suggest how far out from the pool it needs to go and how deep it should be on the ground? I did see a lot in the searches but a lot seemed to be for just doing a single 8 gauge wire, like I originally had done.
    Thank you all

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    Re: Where to buy a pool bonding grid?

    Welcome to the forum.

    It seems you should be talking with the town to see exactly what they want.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Where to buy a pool bonding grid?

    Quote Originally Posted by Jeffsp View Post
    Hello all, I'm sorry if this is in the wrong section. I put up my pool last year, according to, at the time the towns requirements, it included bonding using 8 gauge bare copper around the pool, and I mounted it in 6 spots. Long story I passed final inspection last year, or so I thought. Got a notice last week saying my permit was still open and they required an inspection. Inspector came out today and said I need to bond the water and that I needed a bonding grid.

    So for bonding the water, I'll probably just go with the Bond safe 680 skimmer plate, but where do I get a copper grid? Do I make my own? Can anyone suggest how far out from the pool it needs to go and how deep it should be on the ground? I did see a lot in the searches but a lot seemed to be for just doing a single 8 gauge wire, like I originally had done.
    Thank you all
    Search for "bonding a pool" in youtube and you see many useful videos - look especially at those by a Mike Holt - probably the foremost expert on Equipotential Bonding. The Code has changed over the years. Also, once the inspector sees you understand the reason for bonding at and around a pool he may be easier to work with - and your pool will be safer too.
    Intex 12x24 UltraFrame 8500 gal AG, on 2 in Pactiv foam on reinforced 5 in thick concrete patio as foundation for future 3-season sunroom. Wooden deck around pool, flush with 1st floor of home. 1 hp single-speed Pentair pump, Hayward 1200 Cartridge filter, 2 in piping, 55-70 gpm pool water to WS-05 Aquacal geothermal heat pump with about 20 gpm source well water. (a 5-ton open-loop geothermal heat pump already heated/cooled the house.)

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    Re: Where to buy a pool bonding grid?

    If you passed an inspection last year you should have received a stamped document of some sort or at least a sign-off on the original permit.

    You also indicated that you placed a bond wire around the pool connecting it at 6 places (4 are the NEC requirement). This is the grid that you are required to have. The waterbond will have to be connected to this.
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    Re: Where to buy a pool bonding grid?

    So I guess I should ask, when he says grid, he is referring to just the bond wire that I have already run? Not necessarily an actual grid? After some research it seems the grid is only necessary if concrete was near? Which is not.
    He mentioned that he saw 2 of the points that the bonding wire was connected to, but he wants it dug up showing that it's 18-24" from the perimeter of the pool and 4-6" deep.

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    Re: Where to buy a pool bonding grid?

    I am suspecting that the inspector does not know the intricacies of NEC 680 and is quoting from memory more than knowledge.

    Yes, the bonding grid is the wire around the pool 18" out and 6" deep. If there is a concrete deck, the wire would be connected to the reinforcing wire in it. This is where the term Grid comes from. Your pool needs to have 4 points of connection around the perimeter. All 4 points must be connected to the pool frame with DB (direct burial) lugs. Split bolt connections are allowed to connect the #8 wire from the frame to the perimeter wire. The perimeter wire must also be connected to a water bond and a lug on the pump if it is not a double insulated motor. Also connections to a heater and any other metal device within 5' horizontally from the inside wall of the pool and 12' vertically.
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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