Thank you for the reply. I wasn't sure if that was the way it would work or not. But that would be a good idea also. To be able to switch them yourself like all the others I've known to. This is the first I've ran across that balance.i had no idea.
96 Silverado dump truck. dual tanks. as the primary tank uses fuel the secondary tank pumps into primary tank. on the driver side frame rail is a relay to run the secondary tank fuel pump. just below that is the balance module. when i bought my truck, they eliminated the secondary tank. So...