Just to make sure.

Tunze must operate with 3V min and 8V max.

That means that 8V gives the max lt/h for a specific Tunze pump & 3V gives the min lt/h?

I think when I set Tunze to minimum 1% and have set 1-10V to min 3V, Tunze is strong enouph and I was wondering if it could cut more power..