I just changed my power steering pressure line about 1500 miles ago. All the fluid had come out so I put new clean fluid in. Last night my powersteering pump began whining really loud and I checked the fluid and it was brown milky color. I know the pump has to be shot but why would the fluid get dirty so quick. Does this mean there has to be a leak in my ps system.

 

there was probally crap in the pump that didnt drain out