2000 Subaru Outback

do I need a new gasket, how do I know if I have the correct belt tension?

We just had a very similar problem with our 2000 Outback. We had a belt installed at a local Goodyear store and the exact same problem occurred so we took it back and they told us it was a bad pump.....I am interested to hear any feedback you get. I have since located a used pump and am trying to find instructions for installation as I definately won't take it back to the Goodyear store for repair.

Does anyone have detailed instructions or a link to installinga power steering pump for a 2000 Subaru Legacy Outback, do I need to flush the fluid as well?