Flow out of the outlet side of the acid pump

Relatively new to the biomed depart and had this interesting thing happen.  Machine (2008T, 18569hrs) pulled back for temp error.  Replaced flow motor and dearation motor brushes and recalibrated.  Now I've got flow coming OUT of the acid pump outlet hose (the white one).  I have double checked to make sure the pump heads were in the correct alignment (both are), and made sure the caps were on correct (both are).  Checked the acid pump to make sure that I've got the inlet to the inlet and the outlet to the outlet (both correct positions)

I've traced the tubing to make sure nothing was crossed up and everything is where it's supposed to be.

I am perplexed. Appreciate any advice/solutions.  Thank you