Thanks John & Iwire, just a point of info. This heater is for shower facilities. Original was installed in the sixties at which time there were no requirements for the hot & cold water lines to be bonded together. In this case I think it is an excellent idea. We now have plastic supplying the heater and galvenized running to the shower and lavatory facilities. John, when you say pulling a ground is standard practice in your area, are you referring to replacement of existing equipment, new equipment or both?
