should I replace with factory. or can I use aftermarket

What is your question?

I have a 2005 kia sportage ex with a 2.7 liter. I noticed I has loosing power steering fluid. I took the top engine cover off noticed fluif all over the underside of cover. had someone start car and had them turn steering sharp side to side. when held approximatly 3 to 5 seconds it gushed fluid. I got an aftermarket from advanced was fine for 3 to 5 days and now is leaking again. should I get a factory replacement

What makes this problem better or worse?

it's worse when turned sharp

How long has your 2005 Kia Sportage had this problem?

not shure