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Thread: Bonding Wire

  1. #1
    Junior Member
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    Aug 2010
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    Bonding Wire

    I am in the middle of installing a pool timer and adding a salt water generator (Compupool) to update my inground pool. Originally the pump was operated with an on/off switch box mounted to the wall. Looking at the wiring inside the switch I noticed that the bonding wire entered the box and was connected to the ground wires via lug. Also the pump has no bonding wire connected to it at all. Tomorrow I will be mounting the pool timer to the wall in place of the switch and my thought was I should add another electrical box to house the bonding wire that comes out of the ground. In this new electrical box I was going to connect a new 8 AWG copper wire that ran to the pump and salt water generator. Is this the proper way to do it? If so do I need to run a "loop" of the new copper wire that starts at the electrical box and ends at the electrical box or in a line that ends at the SWG?

    Thanks for your help!

    Eric
    Soon to be built: ~15,000 gallon in ground pool/spa Gunite with Marbletite Beach series finish, Pentair Intellitouch I7+3, Intellibrite LED lights, Sta Rite Intellipro VS 3050 pump, Star Rite PLM cartridge filter, IC40 SWG, Sta Rite Max E Therm 400K propane gas heater, Automatic water level

  2. #2
    Senior Member
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    Re: Bonding Wire

    Welcome to TFP! We've got several people with experience in this type of thing. Sit tight and we will get your question answered.
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
    TF Test Kits - Pool Math - Pool School
    "It depends."- JohnT

  3. #3
    Administrator JasonLion's Avatar
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    Re: Bonding Wire

    The bonding wire is not typically connected to ground, though that is allowed these days. Nor is it typically installed in an electrical box. You don't want the bonding wire running next to live conductors if you can help it.

    There are rules about what kinds of connections you can use to connect two pieces of bonding wire together. Standard wire nuts are not sufficient. It is usually fairly easy to find listed bonding clamps for clamping two wires together at any good electrical parts store or most of the big box hardware stores.

    It doesn't have to be a loop.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    TFP Admin. Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  4. #4
    Junior Member
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    Aug 2010
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    Re: Bonding Wire

    Thanks so much for your help! The bonding wire coming out of the ground is currently encased in PVC so I figured to run it into a small PVC box and inside connect the two wires via bonding clamp. Good point about having the bonding wire away from a live wire. I can't believe the pool inspector didn't catch this two years ago when I bought the house.
    Soon to be built: ~15,000 gallon in ground pool/spa Gunite with Marbletite Beach series finish, Pentair Intellitouch I7+3, Intellibrite LED lights, Sta Rite Intellipro VS 3050 pump, Star Rite PLM cartridge filter, IC40 SWG, Sta Rite Max E Therm 400K propane gas heater, Automatic water level

  5. #5
    Mod Squad Bama Rambler's Avatar
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    Re: Bonding Wire

    Interesting. The bonding wire shouldn't be in any type of conduit. It should be buried directly in the ground. They may have just stuck a sweep on the end coming out of the ground. I can't believe the inspector didn't catch it either unless he's the one that approved it in the first place??

    The connectors you'll need have to be installed/removed using a tool. This usually means a screwdriver or wrench.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 1.5hp Dynamo pump. 24" Pentair Sand Dollar Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit
    You can stop SLAMing your pool when you pass the OCLT (You lose 1ppm or less FC overnight, & You have .5ppm CC's or less) & your water is clear.

  6. #6

    Re: Bonding Wire

    A "split bolt connector" is common connector for securing 2 wires together, easy to find at big hardware stores, $2-$4.
    [center:3mtfbpf9]When the only tool you have is a hammer everything starts looking like a nail.[/center:3mtfbpf9]
    Doughboy 16x24 "Aboveground Inground" in progress...

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