Feeling a little electricity in the pool

[kelemvor]

I think that the concepts of bonding and grounding are being confused here. Bonding would prevent a difference in potential between the various gear that is bonded together (pump, light, pool, ladder etc). There should also be at least one earth ground on the bonding line. It sounds to me like there is really a difference of potential between the ground its-self and the bonded pool gear. Possibly because the earth ground for the bonding setup was sunk near the pool pump equipment and there is a difference in potential between that location in the earth and the location where this person's pool deck is at. I'm not sure if it's really possible to bond concrete, is it? It might be worthwhile to sink another deep earth ground to the bonding line near the pool and/or decking to try and solve this particular problem. Or it could certainly be a faulty bonding line like Pooldoc said in the first place.

Another thought I had was that if the setup has any significant age, the ground rod could have simply corroded enough that it's no longer serving it's purpose.

[BigDave]

Bonding should bond the water in the pool as well as every piece of metal and all other conductive material (reinforced concrete is quite conductive) close enough to the pool that a someone could touch it and the pool at the same time. The bond is there to force all these objects to the same potential (voltage) by carrying the current of any difference with almost no resistance. The OP here clearly has a bonding problem as did msumoose's friend.
I'm not sure Kelemvor, if driven grounds connected to the bond would help or hurt, they represent additional sources of stray voltage. Some codes require pool bond to be connected to driven ground, some do not. My non-expert opinion: the bond must carry the current of the voltage differences around the pool but should not be used to equalize potential accessed by driven grounds.