Well I decided to suction out the power steering fluid inside reservoir to see what color it is....I would say brownish..
I used GM PS fluid to refill the reservoir. I think I will have to do this again in a few weeks. The new PS pump does whine slightly where as the old pump was dead quiet. Mechanic stated those Delco pumps require a 500km break in period and it should quieten down a bit...huh?
After the break in period, I will keep on top of suctioning out the reservoir.
Otherwise it may require a good PS steering Flush soon, If it does not clear up.