Actually you have it backward and got lucky. You do need #4 to the pipe and #6 to the rods ... and you need both so you are in compliance. It's Miller Time.
Ha,HA!!
Lucky in a strange way!
I figured #4 for the water main, I know the rods are supplemental.
First time in this town and they require copper water mains.
Live and learn. I knew where the main was coming in but the pipe showed up 2 weeks after the power was on.
AAAARRRgg.
