I would be running 100-150 gallon tank in a trailer. So if i go with a pump setting i would have to figure away to run a battery in the trailer to power the pump correct?
Lots of different ways to do this, including the 12V outlet in your vehicle. I ran a 12V outlet to the bed of the truck. I also have a 120V harbor freight clear water pump. It is cheaper than the 12V. In that case, I use a power inverter to convert the DC from the battery to AC for the pump. I use the 120V pump to pump waste vegetable oil, which I use to fuel the diesel truck.