We have been installing pools for 15 years. We have the same electrician doing the bonding/grounding for most of that time. A pool that passed two electrical inspections last August, was properly bonded - steel wire under concrete, handrails, ladder, dive stand, slide legs, etc, bonded to steel pool walls using # 8 copper wire. Equipment properly bonded and grounded at our panel, which is tied into a panel in the customers garage, which I believe is tied into a panel in the house. This week the customers called stating that at a redent party, swimmers that touched handrail, ladder or coping/concrete (unlikely that they could touch the coping witout also contacting concrete) were getting shocked. My husband, admittedly an old "Pool Guy" went over yesterday and did not feel anything. he cleaned off the metal contacts in the ladder and handrail anchors and threw in a ground rod, hoping that will take care of the problem. From what I am reading about equipotential bonding, I suspect it won't. If I understand it correctly, in simplistic terms, grounding will prevent sending stray electrical currents from the pool and/or equipment into the pool/pool area. Any stray current, be it from the pool equipment, underground utilities, or a neighbors faulty electrical system, that enters an unbonded pool/pool area, has the potential to shock/electrocute people in the pool/ pool area. Proper bonding removes the potential. Is that correct? Is there any circumstance in which a pool could be properly bonded and people still get shocked? Like maybe in an unbonded pool they would have been electrocuted? The pool has a salt to chlorine generator. We would have added about 500 lbs of solar salt last year. Could that effect the requirements for grounding the water? The light ring is a non-corrosive molded plastic, but the niche is metal. The ladder is metal and protrudes into the water. Due to issues with salt pools where the ladder and handrails were permanently bonding to the anchors, we switched to bronze anchor and more recently plastic anchors with metal lugs/channel sets inside. If the bonding failed at some point, is there any way (other than removing concrete) to pinpoint where? If,so, can we just remove that spot from the grid? For instance, it it was at a handrail anchor, if we removed the ladder or put in a coated ladder (they make soe that are coated in the way a truck bed is coated)would that repair the bond? I apologize if these are stupid questions. I am trying to get my brain wrapped around all this bonding/grounding stuff and the old brain is not quite as pliable as it used to be. After two years of terrible economy followed by a season of non cooperative weather, I am trying to find an effective AND affordable way to eliminate any hazardous conditions.