When we built our pool, I didn't have much knowledge about pools, let alone building one. We located our pool in an area where the backside had to be cut 3' or so to level the existing ground. We built a retaining wall and deck on that side of the pool. I didn't know about bonding until after the fact. I've read that to bond, a #8 bare wire is placed 18-24" from the pool wall 4-6" deep, attached to vertical supports at 4 locations(evenly spaced), attached to a screw at the wall seam, then attached to the pump. I don't have access at the retaining wall/deck area, not enough space between pool and retaining wall. Does the wire have to complete a loop? Does the wire have to be in a trench 100%? I could fish the wire under the deck, but have no way to trench(would be exposed). Or I can connect at 4 locations and run to the pump, but about 1/4-1/3 circumference of pool would have no loop.Thanks for any direction in this matter.