i just had a very qualified electrician whose done good work for me on other areas of my house check out my planned pool electrical and heating renos..i think he was smart to say,"

" i'm familiar with bonding and have done it but not since the code revisions..in the prior code it was not necessary to bond the pump , heater etc to the bonding grid, but..i'm going to bring an electrical inspector by to see what we are going to be doing and give me the final word"

that to me seems like the smartest route, right there..and yes, codes in us and canada are different on this as they are on ventilation. how different..not sure.