electrical wiring/hot water ground

timO' Thou odd worm. Thou wilful boy. Ye trivialised:

Dumbfuck.

Water in metal containment vessel + electricity = death.

Yeah... what f****ng country are you in, you slack-jawed moron? And what do your local standards say you must do, you f****ng great galah?

Are you sure? cold water pipe and a driven ground rod. Is required under section 250 of the NEC National Electrical Code. your four wire cable going to your heat pump has a ground in it for the job.

Well S'Cuse meee girls Why do I have to sift through all this filth to get one lgitimate reply?

i guess I omitted that the water heater is existing, and electric. it has its own fused disconnect adjacent to it, and the branch circuit wired to it had a ground to the load center. The well pump is similarly wired with a cutoff and a ground. I think my friend (a master electrician) who advised me to run a ground to the water heater was thinking I could get a clamp onto a cold water pipe going into the water heater, but there is no metal pipe in my system except small spans between the well tank and the filter, then a piece for the cutoff valve. Nothing going to ground; and as I am trying to say; it is not city water; it an underground pump which connects to the house with non-metallic 'hose'. It's a small old house in a rural area in the South. I bet it had cast iron pipes originally, and they had to replace it as it constricted. And they used the cheapest materials they could.