>are you aware that the purpose of the bonding grid in a swimming pool is to eliminate voltage gradients.
Yes, I was just musing that bonding won't stop corrosion.

>Have you ever seen impressed current cathodic protection or similar used in swimming pools, I am aware of it's use on ... boats.
...boats with people swimming around them.

>toss a charge into the pool
I meant to say 'onto' the metal/bonded part, not 'into' the water!