I'm having stray voltage in my pool and I'm trying to trouble shoot the problem. I believe my pool in bonded, but I'm thinking it's done incorrectly. I have a copper wire that's attached to the bonding lug on my pump, from the pump it goes to a grounding rod then the copper line goes to and under my concrete pool deck. Is a bonding grid supposed to be attached to a grounding rod? I'm thinking it shouldn't and might be causing the stray voltage.
How did you determine that you have stray voltage in your pool? Did you measure the voltage?
In a correctly bonded pool, the pump motors, ladders, deck boxes, diving boards, handicap lifts, niches, and anything else in close proximity to the water will all be bonded together using a #8 solid copper wire.
You can check the continuity using a volt-ohm meter and a long piece of wire. Connect one lead to the pump motor lug and then connect the other lead to each piece of pool equipment and record your measurements. Then do the same thing for each piece of equipment, recording your measurements. If it is bonded properly the measurements should all be very close. If you see one that is way off, there is a problem there.
Are there any power company transformers near the pool? Have your lights in the house been flickering or going dim occasionally? Have you contacted the power company?
A ground rod is not required to be bonded to the pool equipment. I am thinking that possibly you have a neutral problem in your electrical service and that the return current is traveling back to the transformer through your water pipe ground. Put an ammeter on your grounding electrode conductor. It should read zero.
