New Holland C238 High Flow Issue

My high flow is only one direction. Is this normal? I have a high flow brush cutter that I picked up and a Loftness mulcher. The machine runs them only in one direction. I switched the hoses around and both attachments will run in the opposite direction fine. So, the machine is only providing flow in one direction.

The issue is that I can't run the mulcher backwards to clear it and the brush cutter has bi-directional blades, so it would be nice to wear both sides of the blade.

New Holland C238 High Flow Issue