When argodiode(2 output 80amp) is energized through ignition and when directly from the starter output. The starter battery is bleeding 8 volts through to the domestic system, when the domestic battery is switched off from the isolator. This is sufficient to power low voltage systems like lighting etc.
I can see a low transfer between both ammeters.
Is this normal behaviour?
Naturally my concern is that I might drain my starter.