First, welcome to the forum.
If it were me, the first thing I would do is to read your local codes for pool bonding and pool grounding, before I would do anything. Many places do not require bonding for above ground pools with depths 48" or lower, some areas do not require bonding at all on above ground pools.
Second, you mention a ground rod, understand, there is bonding, which just electrically connect all the parts around pool, so that they all have the same electrical potential (electricity flows from higher potential to lower potential and everything on the earth has an electrical potential), then there is grounding, which gives electricity a clear path to ground, this is to provide a path for electrical faults, so that the breaker will trip sooner, grounds usually require a ground rod.
I would follow the regulations for your area, as to what is required for either/both bonding and grounding.
One more thing, even if your codes do not require bonding, if you are experiencing any tingle or shock around the pool, I would bond the pool and equipment.
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