Did you put a meter on it to see if there's any stray current?
Typically if we could stay 10ish pipe diameters before the fittings it smoothed out....5 was the minimum but often not enough to stop cav.
HC, have not done that, will check tommorow
That could be very difficult to get a proper reading. If it's the ground that is carrying voltage what would you connect the negative lead of your meter to?
