ECN Forum Forums General Topics of the Trade General Discussion Area hydromassage tub motor bonding (whirlpool)

if PEX (plastic waterpipes) are run to a whirlpool does the motor have to be bonded to the Service Gounding system? Im a lil confused? Been looking but cant find a definite answer. And since the widespread use of PEX it is a more common occurence. B4 pex it was a no brainer but just looking for a clarification. Thanks guys

Denny