I have a pool that I'm wiring and the builder who used to be an electrician said he thought it would need a ground ring because it will not have poured concrete around it and will only have pavers installed. I have 4 tails of 8 solid at the corners of the pool that comes off of the pool rebar. All my bonding inspections have passed but he says he is sure I need one. I can't find anything in the code that says I need one only that I need the 4 points hit. Any suggestions?