I recently installed a Ameerican Standard Whirlpool tub, that has a
2.1HP pump that came wired with a three prong plug. I also installed a
EZ inline hearer that also came with a three prong plug. I put each of
these on separate circuits (20A/15A pump/heater), isolated, ending with
a GFCI-protected outlet. I was reading through the installation
instructions for the heater, and it talked about "BONDING" the heater to
the house ground supply.
I have done a bit of research, and now understand that that means a 8AWG
bare or green ground wire needs to go to the heater and pump (although
the pump installation instructions didn't say anything about this) and
then to my panel.
OK I am gonna do this, but I was wondering how big a deal is this, in
the meantime? Should I not use the hot tub due to danger? Both devices
are grounded, and plugged into functional GFCI outlets. I (sort of)
understand that the bonding ensures equal something-or-other ( no
voltage differences) between each of the metal componets near the tub.